2 register descriptions – Panasonic MN103001G/F01K User Manual
Page 391
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I/O Ports
15-25
15.6.2 Register Descriptions
Port 4 is a general-purpose input/output port that is also used for serial interface input/output signals SBI1,
SBO1, SBT1, SBI0, SBO0, and SBT0; the DRAM CAS signals (for 2CAS) DCAS1 and DCAS0; and the DRAM
write signal (for 2CAS) DWE.
Each register for port 4 is described below.
Port 4 output register
Register symbol: P4OUT
Address:
x'36008008
Purpose:
This register sets the data to be output on port 4.
Bit No.
7
6
5
4
3
2
1
0
Bit name
-
-
P45O P44O P43O P42O P41O P40O
Reset
0
0
0
0
0
0
0
0
Access
R
R
R/W
R/W
R/W
R/W
R/W
R/W
Port 4 pin register
Register symbol: P4IN
Address:
x'36008088
Purpose:
This register reads the value of the port 4 pins.
Bit No.
7
6
5
4
3
2
1
0
Bit name
-
-
P45I
P44I
P43I
P42I
P41I
P40I
Reset
0
0
X
X
X
X
X
X
Access
R
R
R
R
R
R
R
R
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