D12320VF25V Datasheet, PDF (1031/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

SYSCR—System Control Register
Appendix B Internal I/O Registers
H'FF39
MCU
Bit
:
7
⎯
Initial value :
0
Read/Write : R/W
6
5
4
3
2
1
0
⎯ INTM1 INTM0 NMIEG LWROD ⎯ RAME
0
0
0
0
0
0
1
⎯
R/W
R/W
R/W
R/W
R/W
R/W
RAM Enable
0 On-chip RAM disabled
1 On-chip RAM enabled
Reserved
Only 0 should be written to this bit
LWR Output Disable
0 PF3 is designated as LWR output pin
1 PF3 is designated as I/O port, and
does not function as LWR output pin
NMI Input Edge Select
0 Falling edge
1 Rising edge
Interrupt Control Mode Selection
0 0 Interrupt control mode 0
1 Setting prohibited
1 0 Interrupt control mode 2
1 Setting prohibited
Reserved
Only 0 should be written to this bit
Rev.7.00 Feb. 14, 2007 page 997 of 1108
REJ09B0089-0700