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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： | 7/64页 |
| 文件大小： | 331K |
| 代理商： | EM73MA89B |
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* This specification are subject to be changed without notice.
EM73MA89B
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
10.15.2002 (V1.3)
EXAMPLE:
Operation
Carry
Zero
8-4=4
1
0
7-F= -8(1000)
0
9-9=0
1
ACC
CF
MSB
LSB
3
2
1
0
H REGISTER
3
2
1
0
L REGISTER
ACC
CF
MSB
LSB
(3) Rotation:
Two types of rotation operation are available, one is rotation left, the other is rotation right.
RLCA instruction rotates Acc value counter-clockwise, shift the CF value into the LSB bit of Acc and hold
the shift out data in CF.
RRCA instruction operation rotates Acc value clockwise, shift the CF value into the MSB bit of Acc and
hold the shift out data in CF.
PROGRAM EXAMPLE: To rotate Acc clockwise (right) and shift a "1" into the MSB bit of Acc.
TTCFS; CF
← 1
RRCA; rotate Acc right and shift CF=1 into MSB.
HL REGISTER
HL register are two 4-bit registers, they are used as a pair of pointer for the RAM memoryaddress. They are
used as also 2 independent temporary 4-bit data registers. For certain instructions, L register can be a pointer
to indicate the pin number (Port4 only).
HL REGISTER STRUCTURE
HL REGISTER FUNCTION
(1) HL register is used as a temporary register for instructions : LDL #k, LDH #k, THA, THL, INCL, DECL,
EXAL, EXAH.
PROGRAM EXAMPLE: Load immediate data "5h" into L register, "0Dh" into H register.
LDL #05h;
LDH #0Dh;
(2) HL register is used as a pointer for the address of RAM memory for instructions : LDAM, STAM, STAMI ..
PROGRAM EXAMPLE: Store immediate data "#0Ah" into RAM of address 35h.
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相关代理商/技术参数 |
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| EM73P361A | 制造商:EMC 制造商全称:ELAN Microelectronics Corp 功能描述:4-BIT MICRO-CONTROLLER FOR LCD PRODUCT |
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