CHAPTER 14 PORT FUNCTIONS
User’s Manual U14359EJ4V0UM
492
(b) Port CS mode control register (PMCCS)
This register can be read/written in 8-bit or 1-bit units.
7
6
5
4
3
2
1
0
Address
After reset
Note
PMCCS PMCCS7 PMCCS6 PMCCS5 PMCCS4 PMCCS3 PMCCS2 PMCCS1 PMCCS0 FFFFF048H
00H/FFH
Note
In ROMless modes 0 and 1, and single-chip mode 1: FFH
In single-chip mode 0:
00H
Bit position
Bit name
Function
7
PMCCS7
Port Mode Control
Specifies operation mode of PCS7 pin.
0: I/O port mode
1: CS7 output mode
6
PMCCS6
Port Mode Control
Specifies operation mode of PCS6 pin.
0: I/O port mode
1: CS6/RAS6 output mode (CS6/RAS6 signal automatically switched by
accessing the targeted memory of each signal.)
5
PMCCS5
Port Mode Control
Specifies operation mode of PCS5 pin.
0: I/O port mode
1: CS5 output mode/IORD output mode
4
PMCCS4
Port Mode Control
Specifies operation mode of PCS4 pin.
0: I/O port mode
1: CS4/RAS4 output mode (CS4/RAS4 signal automatically switched by
accessing the targeted memory of each signal.)
3
PMCCS3
Port Mode Control
Specifies operation mode of PCS3 pin.
0: I/O port mode
1: CS3/RAS3 output mode (CS3/RAS3 signal automatically switched by
accessing the targeted memory of each signal.)
2
PMCCS2
Port Mode Control
Specifies operation mode of PCS2 pin.
0: I/O port mode
1: CS2 output mode/IOWR output mode
1
PMCCS1
Port Mode Control
Specifies operation mode of PCS1 pin.
0: I/O port mode
1: CS1/RAS1 output mode (CS1/RAS1 signal automatically switched by
accessing the targeted memory of each signal.)
0
PMCCS0
Port Mode Control
Specifies operation mode of PCS0 pin.
0: I/O port mode
1: CS0 output mode