SN8P2604
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 25
Version 1.1
2.1.4 SYSTEM REGISTER
2.1.4.1 SYSTEM
REGISTER
TABLE
0 1 2 3 4 5 6 7 8 9 A B C D E F
8
L H R Z
Y -
PFLAG
- - - - - - - - -
9
- - - - - - - - - - - - - - - -
A
- - - - - - - - - - - - - - - -
B
- - - - - - - -
P0M
- - - - - - PEDGE
C
P1W
P1M
P2M - - P5M - - INTRQ
INTEN
OSCM
-
WDTR
TC1R
PCL
PCH
D
P0 P1 P2 - - P5 - - T0M
T0C
- -
TC1M
TC1C
TC1R
STKP
E
P0UR
P1UR
P2UR
- -
P5UR
@HL
@YZ
-
P1OC
- - - - - -
F
STK7L STK7H STK6L STK6H STK5L STK5H STK4L
STK4H
STK3L
STK3H STK2L STK2H STK1L STK1H STK0L STK0H
Description
PFLAG = ROM page and special flag register.
R = Working register and ROM look-up data buffer.
H, L = Working, @HL and ROM addressing register.
Y, Z = Working, @YZ and ROM addressing register.
P1W = Port 1 wakeup register.
PEDGE = P0.0 edge direction register.
PnM = Port n input/output mode register.
Pn = Port n data buffer.
P1OC = Port 1 open-drain control register.
PnUR = Port n pull-up resister control register.
INTRQ = Interrupt request register.
INTEN = Interrupt enable register.
OSCM = Oscillator mode register.
PCH, PCL = Program counter.
T0M = T0 mode register.
T0C = TC1 counting register.
TC1M = TC1 mode register.
TC1C = TC1 counting register.
TC1R = TC1 auto-reload data buffer.
WDTR = Watchdog timer clear register.
STKP = Stack pointer buffer.
STK0~STK7 = Stack 0 ~ stack 7 buffer.
@YZ = RAM YZ indirect addressing index pointer.
@HL = RAM HL indirect addressing index pointer.