JA32050 Datasheet, PDF (5/19 Pages) List of Unclassifed Manufacturers – 8-Bit MCU,ADC,LCD Controller

!
JA32050
IOL4
IOH3
LCD COM, SEG Sink
Current
3V
LCD COM, SEG
Source Current
3V
VOL4=0.3V
VOH2=2.7V
80 150  PA
50 80  PA
MCU Function Description
JA32050 contains a 6502 based 8-bit Micro-Controller Unit (MCU) with Program ROM, Special register, user
data RAM and two 16-bit Timers inside. This chip also provides multi external interrupt pins (I/O Port B) and
Low Voltage Detector (LVD) function.
Memory
Ԧʳ Memory Mapping
Address
00h
01h
02h
03h
04h
05h
06h
07h
08h
09h
0Ah
0Bh
0Ch
0Dh
0Eh
0Fh
10h
11h-1Fh
21h
22h
23h
24h
80h
~
FFh
200h ~ 213h
E400h
~
FFFFh
Definition
POWERC (R/W)
INTC (R/W)
INTF (R/W)
WDTCLR (W)
WDTC (R/W)
TMR0H (R/W)
TMR0L (R/W)
TMR0C (R/W)
TMR1H (R/W)
TMR1L (R/W)
TMR1C (R/W)
PA (R/W)
PAC (R/W)
PAR (R/W)
PB (R/W)
PBC (R/W)
PBR (R/W)
Reserved
CON0
Reserved
LCD0
LCD1
General purpose
Data Memory & Stack
LCD data RAM
User Program
Ԧʳ Data RAM
Total 128 bytes of Data RAM (including the stack) are available from $80h to $FFh.
Ԧʳ Program ROM
Total 7K bytes of user ROM located from $E400h to $FFFFh are available.
Ԧʳ Reset & Interrupt Vector
The reset vector is located at $FFFCh, and interrupt vector followed.
Ԧʳ Stack Pointer
The stack pointer is set from $FFh after power on.
Preliminary
TELΚ886-3-5770755
FAXΚ886-3-5770756
19-5
E-mailΚ[e-mail]
Ver.0.0
Web-siteΚwww.jaztek.com.tw