| 数据搜索系统,热门电子元器件搜索 |
|
TNETV2685FIBZUT9 数据表(PDF) 140 Page - Texas Instruments |
|
|
|||||||||||||||||||||||||||||
TNETV2685FIBZUT9 数据表(HTML) 140 Page - Texas Instruments |
|
140 / 191 page ![]() TMS320DM647 TMS320DM648 SPRS372H – MAY 2007 – REVISED APRIL 2012 www.ti.com Table 6-67. Switching Characteristics for Host-Port Interface Cycles(1) (2) (see Figure 6-40 through Figure 6-47) 720, 800, 900, 1100 NO. PARAMETER UNIT MIN MAX Case 1. HPIC or HPIA read 5 15 Case 2. HPID read with no auto- 9 × M + 20 increment(3) Delay time, HSTROBE low to Case 3. HPID read with auto-increment 1 td(HSTBL-HDV) ns 9 × M + 20 DSP data valid and read FIFO initially empty(3) Case 4. HPID read with auto-increment and data previously prefetched into the 5 15 read FIFO 2 tdis(HSTBH-HDV) Disable time, HD high-impedance from HSTROBE high 1 4 ns 3 ten(HSTBL-HD) Enable time, HD driven from HSTROBE low 3 15 ns 4 td(HSTBL-HRDYH) Delay time, HSTROBE low to HRDY high 12 ns 5 td(HSTBH-HRDYH) Delay time, HSTROBE high to HRDY high 12 ns Case 1. HPID read with no auto- 10 × M + 20 increment(3) Delay time, HSTROBE low to 6 td(HSTBL-HRDYL) ns HRDY low Case 2. HPID read with auto-increment 10 × M + 20 and read FIFO initially empty(3) 7 td(HDV-HRDYL) Delay time, HD valid to HRDY low 0 ns Case 1. HPIA write(3) 5 × M + 20 Delay time, HSTROBE high to 34 td(DSH-HRDYL) ns Case 2. HPID write with no auto- HRDY low 5 × M + 20 increment(3) Delay time, HSTROBE low to HRDY low for HPIA write and FIFO not 35 td(HSTBL-HRDYL) 40 × M + 20 ns empty(3) 36 td(HASL-HRDYH) Delay time, HAS low to HRDY high 12 ns (1) M = SYSCLK3 period = 6/CPU clock frequency in ns. (2) HSTROBE refers to the following logical operation on HCS, HDS1, and HDS2: [NOT(HDS1 XOR HDS2)] OR HCS. (3) Assumes the HPI is accessing L2/L1 memory and no other master is accessing the same memory location. 140 Peripheral Information and Electrical Specifications Copyright © 2007–2012, Texas Instruments Incorporated Submit Documentation Feedback Product Folder Link(s): TMS320DM647 TMS320DM648 |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |