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参数资料
| 型号： | EM73MA89B |
| 英文描述： | Advanced Synchronous Rectified Buck MOSFET Drivers with Pre-POR OVP; Temperature Range: -40°C to 85°C; Package: 8-EPSOIC T&R |
| 中文描述： | 4，液晶产品位微控制器 |
| 文件页数： | 3/64页 |
| 文件大小： | 331K |
| 代理商： | EM73MA89B |
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11
* This specification are subject to be changed without notice.
EM73MA89B
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
10.15.2002 (V1.3)
+2
PROGRAM COUNTER (16K ROM)
Program counter ( PC ) is composed by a 13-bit counter, which indicates the next executed address for the
instruction of program ROM instruction.
For BRANCH and CALL instructions, PC is changed by instruction indicating. PC only can indicate the address
from 0000h-1FFFh. The bank number is decided by P3.
(1) Branch instruction:
SBR a
Object code: 00aa aaaa
Condition: SF=1; PC
← PC
12-6.a ( branch condition satisified )
PC Hold original PC value+1
aaaaaa
SF=0; PC
← PC +1( branch condition not satisified )
PC
Original PC value + 1
LBR a
Object code: 1100 aaaa aaaa aaaa
Condition: SF=1; PC
← PC
12.a ( branch condition satisified )
PC Hold a
a
a aaaaaa
SF=0; PC
← PC +2( branch condition not satisified )
PC
Original PC value + 2
SLBR a
Object code: 0101 0101 1100 aaaa aaaa aaaa (a:1000h~1FFFh)
0101 0111 1100 aaaa aaaa aaaa (a:0000h~0FFFh)
Condition: SF=1; PC
← a ( branch condition satisified )
PC aaaaaaaaaaaa
a
SF=0 ; PC
← PC + 3 ( branch condition not satisified )
PC
Original PC value + 3
(2) Subroutine instruction:
SCALL a
Object code: 1110 nnnn
Condition : PC
← a ; a=8n+6 ; n=1..Fh ; a=86h, n=0
PC 00000
aaaaa
a
LCALL a
Object code: 0100 0aaa aaaa aaaa
Condition: PC
← a
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