LSI Logic Confidential
AC Timing
18-43
Copyright © 2001, 2002 by LSI Logic Corporation. All rights reserved.
18.2.14 SPI Interface Timing
shows typical AC timing parameters for DMN-8600 SPI
transfers. The parameter values are listed in
Figure 18.33 32-Bit SPI Data Transfer Format
T
LOW
SD_CLK low
9 ns
16 ns
T
3
SD_ERROR, SD_SECSTART,
SD_ACK setup
6 ns
6 ns
T
4
SD_DATA setup
4 ns
3 ns
T
6
SD_ERROR, SD_SECSTART,
SD_DATA, SD_ACK hold
1.25 ns
1.25 ns
T
7
SD_WRREQ, SD_RDREQ,
SD_DATA and SD_SECSTART
output delay
3 ns
11 ns
4 ns
18 ns
1. Note: Light loading (50 MHz) is for point-to-point connections in a multi-DMN-8600 configuration.
Table 18.28 SD Input Timing (Cont.)
Symbol
Description
Light Loading
(50 MHz)
1
Heavy Loading
(27/16 MHz)
Min
Max
Min
Max
SIO_SPI_CLK (O)
SIO_SPI_CS (O)
SIO_SPI_MOSI (O)
SIO_SPI_MISO (I)
T
3
T
CYC
T
2
T
1
T
4
T
5
Содержание DMN-8600
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