SLLSFP9 February 2024 TCAN1465-Q1 , TCAN1469-Q1
ADVANCE INFORMATION
The sequence of the 2-bit, watchdog answer-counter is as follows for each counter value:
The MCU needs to clear the bit by writing a '1' to the WD_QA_ERR bit
| QUESTION IN WD_QA_QUESTION REGISTER | WD ANSWER BYTES (EACH BYTE TO BE WRITTEN INTO WD_QA_ANSWER REGISTER) | |||
|---|---|---|---|---|
| WD_ANSWER_RESP_3 | WD_ANSWER_RESP_2 | WD_ANSWER_RESP_1 | WD_ANSWER_RESP_0 | |
| WD_QUESTION | WD_ANSW_CNT[1:0] 11b | WD_ANSW_CNT[1:0] 10b | WD_ANSW_CNT[1:0] 01b | WD_ANSW_CNT[1:0] 00b |
| 0x0 | FF | 0F | F0 | 00 |
| 0x1 | B0 | 40 | BF | 4F |
| 0x2 | E9 | 19 | E6 | 16 |
| 0x3 | A6 | 56 | A9 | 59 |
| 0x4 | 75 | 85 | 7A | 8A |
| 0x5 | 3A | CA | 35 | C5 |
| 0x6 | 63 | 93 | 6C | 9C |
| 0x7 | 2C | DC | 23 | D3 |
| 0x8 | D2 | 22 | DD | 2D |
| 0x9 | 9D | 6D | 92 | 62 |
| 0xA | C4 | 34 | CB | 3B |
| 0xB | 8B | 7B | 84 | 74 |
| 0xC | 58 | A8 | 57 | A7 |
| 0xD | 17 | E7 | 18 | E8 |
| 0xE | 4E | BE | 41 | B1 |
| 0xF | 01 | F1 | 0E | FE |
| NUMBER OF WD ANSWERS | ACTION | WD_QA_ERR (in WD_QA_QUESTION Register)(1) | COMMENTS | |
|---|---|---|---|---|
| RESPONSE WINDOW 1 |
RESPONSE WINDOW 2 |
|||
| 0 answer | 0 answer | -New WD cycle starts after the end of RESPONSE WINDOW 2 -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | No answer |
| 0 answer | 4 INCORRECT answers | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Total Answers Received = 4 |
| 0 answer | 4 CORRECT answers | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Total Answers Received = 4 |
| 0 answer | 1 CORRECT answer | -New WD cycle starts after the end of RESPONSE
WINDOW 2 -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Less than 3 CORRECT ANSWERS in RESPONSE WINDOW 1 and 1 CORRECT ANSWER in RESPONSE WINDOW 2 (Total WD_ANSW_CNT[1:0] < 4) |
| 1 CORRECT answer | 1 CORRECT answer | |||
| 2 CORRECT answers | 1 CORRECT answer | |||
| 0 answer | 1 INCORRECT answer | -New WD cycle starts after the end of RESPONSE
WINDOW 2 -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Less than 3 CORRECT ANSWERS in RESPONSE WINDOW 1 and 1 INCORRECT ANSWER in RESPONSE WINDOW 2 (Total WD_ANSW_CNT[1:0] < 4) |
| 1 CORRECT answer | 1 INCORRECT answer | |||
| 2 CORRECT answers | 1 INCORRECT answer | |||
| 0 answer | 4 CORRECT answers | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Less than 3 CORRECT ANSWERS in WIN1 and more than 1 CORRECT ANSWER in RESPONSE WINDOW 2 (Total WD_ANSW_CNT[1:0] = 4) |
| 1 CORRECT answer | 3 CORRECT answers | |||
| 2 CORRECT answer | 2 CORRECT answers | |||
| 0 answer | 4 INCORRECT answers | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Less than 3 CORRECT ANSWERS in RESPONSE WINDOW 1 and more than 1 INCORRECT ANSWER in RESPONSE WINDOW 2 (Total WD_ANSW_CNT[1:0] = 4) |
| 1 CORRECT answer | 3 INCORRECT answers | |||
| 2 CORRECT answers | 2 INCORRECT answers | |||
| 0 answer | 3 CORRECT answers | -New WD cycle starts after the end of RESPONSE WINDOW 2 -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Less than 3 INCORRECT ANSWERS in RESPONSE WINDOW 1 and more than 1 CORRECT ANSWER in RESPONSE WINDOW 2 (Total WD_ANSW_CNT[1:0] < 4) |
| 1 INCORRECT answer | 2 CORRECT answers | -New WD cycle starts after the end of RESPONSE
WINDOW 2 -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | |
| 2 INCORRECT answers | 1 CORRECT answer | |||
| 0 answer | 3 INCORRECT answers | -New WD cycle starts after the end of RESPONSE
WINDOW 2 -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Less than 3 INCORRECT ANSWERS in RESPONSE WINDOW 1 and more than 1 INCORRECT ANSWER in RESPONSE WINDOW 2 (Total WD_ANSW_CNT[1:0] < 4) |
| 1 INCORRECT answer | 2 INCORRECT answers | |||
| 2 INCORRECT answers | 1 INCORRECT answer | |||
| 0 answer | 4 CORRECT answers | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Less than 3 INCORRECT ANSWERS in RESPONSE WINDOW 1 and more than 1 CORRECT ANSWER in RESPONSE WINDOW 2 (Total WD_ANSW_CNT[1:0] = 4) |
| 1 INCORRECT answer | 3 CORRECT answers | 1b | ||
| 2 INCORRECT answers | 2 CORRECT answers | |||
| 0 answer | 4 INCORRECT answers | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Less than 3 INCORRECT ANSWERS in RESPONSE WINDOW 1 and more than 1 INCORRECT ANSWER in RESPONSE WINDOW 2 (Total WD_ANSW_CNT[1:0] = 4) |
| 1 INCORRECT answer | 3 INCORRECT answers | |||
| 2 INCORRECT answers | 2 INCORRECT answers | |||
| 3 CORRECT answers | 0 answer | -New WD cycle starts after the end of RESPONSE
WINDOW 2 -Increment WD failure counter -New WD cycle starts with the same WD Question |
1b | Less than 4 CORRECT ANSWERS in RESPONSE WINDOW 1 and more than 0 ANSWER in RESPONSE WINDOW 2 (Total WD_ANSW_CNT[1:0] < 4) |
| 2 CORRECT answers | 0 answer | 1b | ||
| 1 CORRECT answer | 0 answer | |||
| 3 CORRECT answers | 1 CORRECT answer | -New WD cycle starts after the 4th WD answer -Decrement WD failure counter -New WD cycle starts with a new WD question |
0b | CORRECT SEQUENCE |
| 3 CORRECT answers | 1 INCORRECT answer | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Total Answers Received = 4 |
| 3 INCORRECT answers | 0 answer | -New WD cycle starts after the end of RESPONSE WINDOW 2 -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Total Answers Received < 4 |
| 3 INCORRECT answers | 1 CORRECT answer | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Total Answers Received = 4 |
| 3 INCORRECT answers | 1 INCORRECT answer | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | Total Answers Received = 4 |
| 4 CORRECT answers | Not applicable | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | |
| 3 CORRECT answers + 1 INCORRECT answer | Not applicable | -New WD cycle starts after the 4th WD answer -Increment WD failure counter -New WD cycle starts with the same WD question |
1b | 4 CORRECT or INCORRECT ANSWERS in RESPONSE WINDOW 1 |
| 2 CORRECT answers + 2 INCORRECT answers | Not applicable | |||
| 1 CORRECT answer + 3 INCORRECT answers | Not applicable | |||