SN8A2617 Datasheet, PDF (22/84 Pages) SONiX Technology Company – 8-Bit Micro-Controller

SN8A2617
8-bit micro-controller MASK type with SIO function
2.1.3 DATA MEMORY (RAM)
256 X 8-bit RAM
BANK 0
BANK 1
Address
000h
“
“
“
“
“
07Fh
080h
“
“
“
“
“
0FFh
100h
“
“
“
“
“
17Fh
RAM location
000h~07Fh of Bank 0 = To store
general purpose data (128 bytes).
General purpose area
System register
080h~0FFh of Bank 0 store system
registers (128 bytes).
End of bank 0 area
100h~17Fh of Bank 1 = To store
general purpose data (128 bytes).
General purpose area
End of bank 1 area
2.1.4 SYSTEM REGISTER
2.1.4.1 SYSTEM REGISTER TABLE
0
1
8L
H
9-
-
A-
-
B-
-
C P1W P1M
D P0
P1
E P0UR P1UR
F STK7L STK7H
2
345
6
R
Z
Y
- PFLAG
-
-
-
-
-
-
-
-
-
-
-
- SIOM SIOR SIOB
P2M
- P4M P5M
-
P2
-
P4 P5
-
P2UR
- P4UR P5UR @HL
STK6L STK6H STK5L STK5H STK4L
7
8
9
A
B
C
D
E
F
RBANK -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
P0M
-
-
-
-
-
- PEDGE
- INTRQ INTEN OSCM - WDTR -
PCL PCH
-
T0M T0C TC0M TC0C -
-
- STKP
@YZ
- P1OC -
-
-
-
-
-
STK4H STK3L STK3H STK2L STK2H STK1L STK1H STK0L STK0H
2.1.4.2 SYSTEM REGISTER DESCRIPTION
L, H = Working & @HL addressing register.
PFLAG = ROM page and special flag register.
SIOM = SIO mode control register.
SIOB = SIO’s data buffer.
P1OC = P5.2 open-drain control register.
PnM = Port n input/output mode register.
INTRQ = Interrupts’ request register.
OSCM = Oscillator mode register.
T0M = Timer 0 mode register.
T0C = Timer 0 counting register.
STKP = Stack pointer buffer.
@HL = RAM HL indirect addressing index pointer.
R = Working register and ROM lookup data buffer.
Y, Z = Working, @YZ and ROM addressing register.
RBANK = RAM Bank Select register.
SIOR = SIO’s clock reload buffer.
P1W = Port 1 wakeup register.
Pn = Port n data buffer.
INTEN = Interrupts’ enable register.
PCH, PCL = Program counter.
TC0M = Timer/Counter 0 mode register.
TC0C = Timer/Counter 0 counting register.
STK0~STK7 = Stack 0 ~ stack 7 buffer.
@YZ = RAM YZ indirect addressing index pointer.
SONiX TECHNOLOGY CO., LTD
Page 22
Version 1.1