HD6432633 Datasheet, PDF (1272/1453 Pages) Renesas Technology Corp – Series of Microcomputers (MCUs: microcomputer units)

SYSCR—System Control Register
H'FDE5
System
Bit
:
Initial value :
R/W
:
7
MACS
0
R/W
6
5
4
3
2
1
0
— INTM1 INTM0 NMIEG MRESE — RAME
0
0
0
0
0
0
1
—
R/W R/W R/W R/W
—
R/W
NMI edge select
0
Interrupt request issued on falling edge of NMI input.
1
Interrupt request issued on rising edge of NMI input.
Interrupt control mode 1, 0
INTM1
INTM0
Interrupt
control mode
0
0
0
Interrupt controlled by bit I
1
—
Do not set.
1
0
2
Interrupt controlled by bits I2 to I0 and IPR.
1
—
Do not set.
MAC saturation
0
Non-saturating calculation for MAC instruction
1
Saturating calculation for MAC instruction
Manual reset select bit
0
Manual reset disabled.
Pins P74/TMO2/MRES can be used as P74/TMO2 I/O pins.
1
Manual reset enabled.
Pins P74/TMO2/MRES can be used as MRES input pins.
RAM Enable
0
Internal RAM disabled.
1
Internal RAM enabled.
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