Figure 16-30: Port Ah Mode Register (Pmah); Figure 16-31: Port Ah Mode Control Register (Pmcah) - NEC V850E/CA2 JUPITER Preliminary User's Manual

(2) Setting in input/output mode and control mode
Port AH is set in input/output mode using the port AH mode register (PMAH). In control mode, it is
set using the port AH mode control register (PMCAH).
(a) Port AH mode register (PMAH)
This register can be read or written in 8-bit or 1-bit units.
7
PMAH PMAH7 PMAH6 PMAH5 PMAH4 PMAH3 PMAH2 PMAH1 PMAH0 FFFF022FH
Bit Position Bit Name
PMAHn
7 to 0
(n = 7 to 0)
(b) Port AH mode control register (PMCAH)
This register can be read or written in 8-bit or 1-bit units.

Figure 16-31: Port AH Mode Control Register (PMCAH)

7
PMCAH PMCAH7 PMCAH6
Bit Position Bit Name
PMCAHn
7 to 0
(n = 7 to 0)
576
Chapter 16 Port Functions

Figure 16-30: Port AH Mode Register (PMAH)

6 5 4
Specifies input/output mode of PAHn pin.
0: Output mode (Output buffer on)
1: Input mode (Output buffer off)
6 5 4
PMCAH5 PMCAH4
Specifies operation mode of PMCAHn pin
0: Input/output port mode
1: A23 to A16 address output
Preliminary User's Manual U15839EE1V0UM00
3 2 1
Function
3 2 1
PMCAH3 PMCAH2 PMCAH1
Function
0 Address At Reset
0 Address At Reset
PMCAH0 FFFFF042H
00H
FFH