WT6116 Просмотр технического описания (PDF) - Weltrend Semiconductor
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WT6116 Datasheet PDF : 39 Pages
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WT6132/WT6124/WT6116
Data Sheet Rev. 1.01
Port A Control Register
Name Addr R/W Initial Bit 7
PA_CTRL 0000h W 00h PA7OE
Bit 6
PA6OE
Bit 5
PA5OE
Bit4
PA4OE
Bit 3
PA3OE
Bit 2
PA2OE
Bit 1
PA1OE
Bit 0
PA0OE
Bit Name
Description
PAnOE Port An Output Enable.
When it is set, PAn is output pin.
When it is cleared, PAn is input pin with internal pull high (except PA0 and PA1 pins).
Port A Data Register
Name Addr R/W Initial Bit 7 Bit 6 Bit 5 Bit4 Bit 3 Bit 2 Bit 1 Bit 0
PA_DATA 0001h R 00h PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
W 00h PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Bit Name
Description
PAn (W) This bit controls the output level when the corresponding PAnOE bit is set.
When PAn=1, PAn pin outputs high level. (PA0 and PA1 are open-drain output)
When PAn=0, PAn pin outputs low level.
PAn (R) When PAnOE=1 (i.e. output port), this bit is same as PAn (W).
When PAnOE=0, this bit indicates the input level. “1” means high and “0” means low.
I/O Port B
I/O Port B is shared with some special functions. When the special function is disabled, it is an general
I/O port and is same as Port A2. If it is configured as an output, it can source/sink 6mA. If it is configured
as an input, it has an internal pull-up resistor.
Port B Control Register
Name Addr R/W Initial
PB_CTRL 0002h W 00h
Bit 7
--
Bit 6 Bit 5 Bit4 Bit 3 Bit 2 Bit 1 Bit 0
--
PB5OE PB4OE PB3OE PB2OE PB1OE PB0OE
Bit Name
Description
PBnOE Port Bn Output Enable.
When it is set, PBn is output pin.
When it is cleared, PBn is input pin with internal pull high
Port B Data Register
Name Addr R/W Initial Bit 7 Bit 6 Bit 5 Bit4 Bit 3 Bit 2 Bit 1 Bit 0
PB_DATA 0003h R 00h
--
--
PB5
PB4
PB3
PB2
PB1
PB0
W 00h
--
--
PB5
PB4
PB3
PB2
PB1
PB0
Bit Name
Description
PBn (W) This bit controls the output level when the corresponding PBnOE bit is set.
When PBn=1, PBn pin outputs high level.
When PBn=0, PBn pin outputs low level.
PBn (R) When PBnOE=1 (i.e. output port), this bit is same as PBn (W).
When PBnOE=0, this bit indicates the input level. “1” means high and “0” means low.
Weltrend Semiconductor, Inc.
Page 7
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