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P
TMS320DM6437
Digital Media Processor
SPRS345B–NOVEMBER 2006–REVISED MARCH 2007
3.7.3.13.5
EMIFA/VPSS Sub-Block 2 Configuration Choices
The 3 pins in the EMIFA/VPSS Sub-Block 2 are standalone (non-multiplexed) pins. They always function
as EMIFA control pins EM_WAIT/(RDY/BSY), EM_OE, and EM_WE. No pin mux selection is necessary
for this Sub-Block.
3.7.3.13.6
EMIFA/VPSS Sub-Block 3 Configuration Choices
The 8 pins in the EMIFA/VPSS Sub-Block 3 are multiplexed between:
EMIFA Address Pins EM_A[12:5]
PCI pins: PCBE3, PIDSEL, AD[24:19]
GPIO pins GP[96:89]
The pin functions in the EMIFA/VPSS Sub-Block 3 are determined by the following PINMUX register
fields:
PINMUX1.PCIEN
PINMUX0.AEM
Once the Major Configuration Option for the EMIFA/VPSS Block (see
Section 3.7.3.13.2
,
EMIFA/VPSS
Block Major Configuration Choices
) is chosen, no further actions are necessary to refine the EMIFA/VPSS
Sub-Block 3 pin selection. For instructions on configuring the EMIFA/VPSS Block, see
Section 3.7.3.13.1
,
EMIFA/VPSS Block Pin Selection Procedure
.
Table 3-55
summarizes the pin selections in the EMIFA/VPSS Sub-Block 3 based on the PINMUX
selections.
Table 3-55. EMIFA/VPSS Sub-Block 3 Configuration Choices
MAJOR
CONFIG
OPTION
A
B
C
D
E
F
G
PINMUX SELECTION FIELDS
RESULTING PERIPHERALS/PINS
PCIEN
AEM
PCI
EMIFA
GPIO
0
0
0
0
0
1
1
000
001
011
100
101
000
101
-
-
-
-
-
-
GP[96:89]
-
-
GP[96:89]
GP[96:89]
-
-
EM_A[12:5]
EM_A[12:5]
-
-
-
-
PCBE3, PIDSEL, AD[24:19]
PCBE3, PIDSEL, AD[24:19]
The following is an example on how to read
Table 3-55
using Sub-Block 3 Major Configuration C as an
example:
The
PINMUX Selection Fields
columns indicate that Sub-Block 3 Major Configuration Option C is
selected through PINMUX1.PCIEN = 0 and PINMUX0.AEM = 3.
The
Resulting Peripherals/Pins
columns show the functional pins resulting from the PINMUX setting. In
Major Configuration C, the user gets EMIFA address pins EM_A[12:5] from Sub-Block 3.
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Device Configurations
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