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HT95C40P 数据表(PDF) 22 Page - Holtek Semiconductor Inc

部件名 HT95C40P
功能描述  LCD Type Phone 8-Bit MCU
PDF  52 Pages
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制造商  HOLTEK [Holtek Semiconductor Inc]
网页  http://www.holtek.com
标志 HOLTEK - Holtek Semiconductor Inc

HT95C40P 数据表(HTML) 22 Page - Holtek Semiconductor Inc

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HT95LXXX
Rev. 1.20
22
May 26, 2004
I/O port pull-high, wake-up function are selected by mask option
I/O Port
Output
Input
Supported for HT95LXXX
Pull-high Resistor Wake-up Function 400/40P 300/30P 200/20P 100/10P 000/00P
PA7~PA0
CMOS
Selected per bit
Selected per bit
ÖÖÖÖÖ
PB7~PB0
CMOS
Selected per bit
¾
ÖÖÖÖ
*
PD7~PD0
CMOS
Selected per nibble
¾
ÖÖÖ
¾
¾
PE3~PE0
CMOS
Selected per nibble
¾
ÖÖÖÖÖ
PF7~PF0
CMOS
Selected per nibble
¾
Ö
¾¾¾¾
PG3~PG0
CMOS
Selected per nibble
¾
Ö
¾¾¾¾
Note:
²¾² means unavailable
V D D
A l l I / O P i n s
M
U
X
P A W a k e - u p O p t i o n 0 ~ 7
S y s t e m W a k e - u p
( P A o n l y )
R e a d D a t a R e g i s t e r
D
Q
C K Q B
S
D
Q
C K Q B
S
C o n t r o l B i t
P U
D a t a B u s
W r i t e C o n t r o l R e g i s t e r
C h i p R e s e t
R e a d C o n t r o l R e g i s t e r
W r i t e D a t a R e g i s t e r
D a t a B i t
Input/Output Ports
Some input/output pins can be optioned to LCD outputs by software.
Register Bits R/W Label Value
400/40P
300/30P
200/20P
100/10P
000/00P
LCDIO
(28H)
5
RW SPE0
0
SEG47~SEG44
¾
SEG19~SEG16 SEG15~SEG12
1
PE3~PE0
¾
PE3~PE0
PE3~PE0
7
RW SPD1
0
SEG43~SEG40
¾¾
¾
1
PD7~PD4
¾¾
¾
6
RW SPD0
0
SEG39~SEG36
¾¾
¾
1
PD3~PD0
¾¾
¾
LCDC
(2DH)
1
RW VBIAS
0
COM7~COM0
COM7~COM0
¾¾
1
COM7~COM0 are unavailable
PD7~PD0
¾¾
When the PD0~PD7 or the PE0~PE3 are not selected, the I/O port control register PDC (19H), PEC (1BH) could be
readable/writable and be used as a general user RAM, but this function is not available for register PD (18H) and PE
(1AH).



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