SPRS377F September 2008 – June 2014 TMS320C6745 , TMS320C6747
PRODUCTION DATA.
デバイスごとのパッケージ図は、PDF版データシートをご参照ください。
No. | PARAMETER | MIN | MAX | UNIT | ||
---|---|---|---|---|---|---|
5 | td(HSTBL-HRDYV) | Delay time,
UHPI_HSTROBE low to UHPI_HRDY valid |
For HPI Write, UHPI_HRDY can go high (not ready) for these HPI Write conditions; otherwise, UHPI_HRDY stays low (ready):
Case 1: Back-to-back HPIA writes (can be either first or second half-word) Case 2: HPIA write following a PREFETCH command (can be either first or second half-word) Case 3: HPID write when FIFO is full or flushing (can be either first or second half-word) Case 4: HPIA write and Write FIFO not empty For HPI Read, UHPI_HRDY can go high (not ready) for these HPI Read conditions: Case 1: HPID read (with auto-increment) and data not in Read FIFO (can only happen to first half-word of HPID access) Case 2: First half-word access of HPID Read without auto-increment For HPI Read, UHPI_HRDY stays low (ready) for these HPI Read conditions: Case 1: HPID read with auto-increment and data is already in Read FIFO (applies to either half-word of HPID access) Case 2: HPID read without auto-increment and data is already in Read FIFO (always applies to second half-word of HPID access) Case 3: HPIC or HPIA read (applies to either half-word access) |
12 | ns | |
5a | td(HASL-HRDYV) | Delay time, UHPI_HAS low to UHPI_HRDY valid | 13 | |||
6 | ten(HSTBL-HDLZ) | Enable time, HD driven from UHPI_HSTROBE low | 2 | ns | ||
7 | td(HRDYL-HDV) | Delay time, UHPI_HRDY low to HD valid | 0 | ns | ||
8 | toh(HSTBH-HDV) | Output hold time, HD valid after UHPI_HSTROBE high | 1.5 | ns | ||
14 | tdis(HSTBH-HDHZ) | Disable time, HD high-impedance from UHPI_ HSTROBE high | 12 | ns | ||
15 | td(HSTBL-HDV) | Delay time,
UHPI_HSTROBE low to HD valid |
For HPI Read. Applies to conditions where data is already residing in HPID/FIFO:
Case 1: HPIC or HPIA read Case 2: First half-word of HPID read with auto-increment and data is already in Read FIFO Case 3: Second half-word of HPID read with or without auto-increment |
15 | ns | |
18 | td(HSTBH-HRDYV) | Delay time,
UHPI_HSTROBE high to UHPI_HRDY valid |
For HPI Write, UHPI_HRDY can go high (not ready) for these HPI Write conditions; otherwise, UHPI_HRDY stays low (ready):
Case 1: HPID write when Write FIFO is full (can happen to either half-word) Case 2: HPIA write (can happen to either half-word) Case 3: HPID write without auto-increment (only happens to second half-word) |
12 | ns |