UHPI_HCS
UHPI_HAS
(D)
UHPI_HCNTL[1:0]
UHPI_HR/W
UHPI_HHWIL
UHPI_HSTROBE
UHPI_HD[15:0]
(output)
UHPI_HRDY
1
2
1
2
1
2
5
6
3
4
3
1
2
1
2
1
2
8
14
15
14
8
7
1st Half-Word
2nd Half-Word
6
13
15
(A)(C)
(B)
OMAP-L137
www.ti.com
SPRS563G – SEPTEMBER 2008 – REVISED JUNE 2014
A.
UHPI_HSTROBE refers to the following logical operation on UHPI_HCS, UHPI_HDS1, and UHPI_HDS2:
[NOT(UHPI_HDS1 XOR UHPI_HDS2)] OR UHPI_HCS.
B.
Depending on the type of write or read operation (HPID without auto-incrementing; HPIA, HPIC, or HPID with auto-
incrementing) and the state of the FIFO, transitions on UHPI_HRDY may or may not occur.
C.
UHPI_HCS reflects typical UHPI_HCS behavior when UHPI_HSTROBE assertion is caused by UHPI_HDS1 or
UHPI_HDS2. UHPI_HCS timing requirements are reflected by parameters for UHPI_HSTROBE.
D.
The diagram above assumes UHPI_HAS has been pulled high.
Figure 6-67. UHPI Read Timing (UHPI_HAS Not Used, Tied High)
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