SN8P2604A
8-Bit Micro-Controller
2.1.4 SYSTEM REGISTER
2.1.4.1 SYSTEM REGISTER TABLE
0
L
1
H
2
R
3
Z
-
4
Y
-
5
-
6
7
-
8
-
9
-
A
-
B
-
C
-
D
-
E
F
-
PFLAG
-
-
-
-
8
9
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
A
B
C
D
E
F
PEDGE
-
-
-
-
-
-
-
-
P0M
-
-
-
-
-
P1W
P0
P1M
P1
P2M
P2
-
-
P5M
P5
-
-
-
-
INTRQ INTEN OSCM
-
WDTR
-
PCL
PCH
-
-
T0M
-
T0C
-
-
-
TC1M TC1C TC1R STKP
P0UR P1UR
P2UR
-
-
P5UR
@HL
@YZ
P1OC
-
-
-
-
-
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.
Y, Z = Working, @YZ and ROM addressing register.
PEDGE = P0.0 edge direction register.
Pn = Port n data buffer.
PnUR = Port n pull-up resister control register.
INTEN = Interrupt enable register.
H, L = Working, @HL and ROM addressing register.
P1W = Port 1 wakeup register.
PnM = Port n input/output mode register.
P1OC = Port 1 open-drain control register.
INTRQ = Interrupt request register.
OSCM = Oscillator mode register.
T0M = T0 mode register.
PCH, PCL = Program counter.
T0C = TC1 counting register.
TC1M = TC1 mode register.
TC1C = TC1 counting register.
TC1R = TC1 auto-reload data buffer.
STKP = Stack pointer buffer.
@YZ = RAM YZ indirect addressing index pointer.
WDTR = Watchdog timer clear register.
STK0~STK7 = Stack 0 ~ stack 7 buffer.
@HL = RAM HL indirect addressing index pointer.
SONiX TECHNOLOGY CO., LTD
Page 24
Version 0.3
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