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參數(shù)資料
| 型號： | 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，液晶產(chǎn)品位微控制器 |
| 文件頁數(shù)： | 29/64頁 |
| 文件大?。?/td> | 331K |
| 代理商： | EM73MA89B |
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35
* This specification are subject to be changed without notice.
EM73MA89B
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
Preliminary
10.15.2002 (V1.3)
Speech active flag (P14.3 read) :
P14
3
2
1
0
Initial value : 0000
ACT WKS SINT CPUS
ACT is the speech acknowledge signal. When the speech synthesizer has voice output, ACT is high. When
ACT is high
→ low, the speech synthesizer can generate the speech ending interrupt SPI.
P14(0,2) are CPU status flags (refer to CPU status). P14.1 is the interrupt source selector (refer to interrupt).
Speech start address register (P24 write) :
P24
3
2
1
0
Initial value : 1111
Port 24
P24L1
P24L2
P24L3
P24L4
A9
A8
A7
A6
A13
A12 A11 A10
A17 A16 A15 A14
-
A19 A18
Send the speech start address to the speech synthesizer by writing P24 four times. There is a pointer counter
to point the address latch (P24L1, P24L2, P24L3, P24L4). It will increase one when write P24. So, the first
time writing P24 to P24L1, the second time is P24L2, the third time is P24L3, the fourth time is P24L4 and the
fifth time is P24L1 latch again, ... etc. The pointer counter point to P24L1 when CPU is reset or P23 is written.
In the DUAL operation mode, the speech synthesizer is available. In the other operation modes, it is disable.
PROGRAM EXAMPLE:
CHIP
ROM16K
;--------RAMdefinearea-----------------
DSEG
ORG
10H
HLBUF:
RES
2
; HL buffer for interrupt
P9BUF:
RES
1
; P9 (RAM bank) buffer for interrupt
:
;----------Constant--------------------------
ACT
EQU
143
SPEECH
EQU
43200H
:
;----------Interrupt subroutine-----------
CSEG
ORG
004H
LBR
SPI
:
SPI:
OUTA
P10
; save Acc to general purpose register P10
INA
P9
OUT
#0000B,P9
10 instruction bytes
STA
P9BUF
; save RAM bank to P9BUF
EXHL
HLBUF
; save HL to HLBUF
:
EXHL
HLBUF
; restore HLBUF to HL
LDA
P9BUF
; resotre P9BUF to RAM bank
10 instruction bytes
OUTA
P9
INA
P10
; restore register P10 to Acc
RTI
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相關(guān)代理商/技術(shù)參數(shù) |
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