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參數(shù)資料
| 型號： | VG509A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | EPROM-Based 8-bit micro-controller |
| 中文描述： | 存儲器為基礎(chǔ)的8位微控制器 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 1368K |
| 代理商： | VG509A |
VG509A
- 3 - Ver 1.2
(4) STATUS (Status register) : R3
Bit
0
1
2
3
4
5
6
7
(5) MSR (Memory Bank Select Register) : R4
b7
b6
Symbol
C
HC
Z
PF
TF
PAGE
——
PCWUF
Function
Carry bit
Half Carry bit
Zero bit
Power down bit
WDT Timer overflow Flag bit
ROM page select bit :
Unimplemented
Pin change wake up from sleep
b5
b4
b3
b2
b1
b0
Bank select
Read only “1”
Indirect Addressing Mode
(7) PORT B : R6
PB5~PB0, I/O Register
(8) TMR (Time Mode Register)
Bit
Symbol
Function
Prescaler Value
RTCC
rate
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
1 : 256
WDT
rate
1 : 1
1 : 2
1 : 4
1 : 8
1 : 16
1 : 32
1 : 64
1 : 128
2
—
0
PS2—0
0 0 0
0 0 1
0 1 0
0 1 1
1 0 0
1 0 1
1 1 0
1 1 1
Prescaler assignment bit :
0 — RTCC
1 — Watchdog Timer
RTCC signal Edge :
0 — Increment on low-to-high transition on RTCC pin
1 — Increment on high-to-low transition on RTCC pin
RTCC signal set :
0 — Internal instruction cycle clock
1 — Transition on RTCC pin
PortB pull-high :
0 — Enable
1 — Disable
PortB wake-up :
0 — Enable
1 — Disable
3
PSC
4
TCE
5
TCS
6
PBPHB
7
PBWUB
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