sh6622a SinoWealth Micro-Electronics Corp. Ltd, sh6622a Datasheet - Page 4

• Manufacturer Part Number: sh6622a
• Description: Mask 4-bit Microcontroller
• Manufacturer: SinoWealth Micro-Electronics Corp. Ltd

3. RAM
Built-in RAM consists of general-purpose data memory and system register. Direct addressing in one instruction can access d
ata memory and system register.
The following is the memory allocation map:
$000 - $01F: System register and I/O.
$020 - $0BF: Data memory (160 X 4 bits).
The configuration of system Register
* System Register $00 - $12 (except $07H). Please refer to "SH6610C User’s manual".
$13 - $15
Address
$0A
$0B
$0C
$0D
$0E
$1A
$1B
$1C
$1D
$1E
$00
$01
$02
$03
$04
$05
$06
$07
$08
$09
$0F
$10
$11
$12
$16
$17
$18
$19
$1F
PC3OUT
PD3OUT
PE3OUT
PA3OUT
PB3OUT
TH0.3
TBR.3
DPL.3
TL0.3
LPD3
INX.3
PC.3
PD.3
WDT
PA.3
PB.3
PE.3
Bit3
-
-
-
-
-
-
-
-
-
-
-
-
PA2OUT
PB2OUT
PC2OUT
PD2OUT
PE2OUT
IRQT0
DPM.2
DPH.2
TM0.2
TBR.2
TH0.2
DPL.2
TL0.2
LPD2
INX.2
PA.2
PB.2
PC.2
PD.2
PE.2
IET0
Bit2
-
-
-
-
-
-
-
-
-
PC1OUT
PD1OUT
PA1OUT
PB1OUT
PE1OUT
PF1OUT
DPM.1
DPH.1
TM0.1
TBR.1
DPL.1
TH0.1
TL0.1
LPD1
INX.1
PC.1
PD.1
PA.1
PB.1
PE.1
PF.1
T0S
Bit1
-
-
-
-
-
-
-
-
PC0OUT
PD0OUT
PA0OUT
PB0OUT
PE0OUT
PF0OUT
DPM.0
DPH.0
TM0.0
TBR.0
DPL.0
TH0.0
TL0.0
IRQP
LPD0
INX.0
PA.0
PB.0
PC.0
PD.0
PE.0
PF.0
T0E
Bit0
IEP
-
-
-
-
-
-
4
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
W
W
W
W
W
W
W
W
W
-
-
-
-
-
Interrupt enable flags
Interrupt request flags
Timer0 Mode register (Prescaler)
Reserved
Timer0 load/counter register low digit
Timer0 load/counter register high digit
Reserved
LPD Enable Control (LPD3 - 0):
1010: LPD Enable (Default);
0101: LPD Disable
PORTA
PORTB
PORTC
PORTD
PORTE
PORTF
Table Branch Register
Pseudo index register
Data pointer for INX low nibble
Data pointer for INX middle nibble
Data pointer for INX HIGH nibble
Reserved
Set PORTA to be output port
Set PORTB to be output port
Set PORTC to be output port
Set PORTD to be output port
Set PORTE to be output port
Set PORTF to be output port
Bit0:T0 signal edge;
Bit1: T0 signal source
Reserved
Bit3: WDT time-out (write 1 only)
Reserved
Remarks
SH6622A