BS85B12-3 HOLTEK [Holtek Semiconductor Inc], BS85B12-3 Datasheet - Page 11

• Manufacturer Part Number: BS85B12-3
• Description: Touch Key Flash Type 8-Bit MCU with LCD/LED Driver
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

BS85B12-3/BS85C20-3
Touch Key Flash MCU with LCD/LED Driver
Rev. 1.00
PB2/TP1B_0/
SCOM2
PB3/TP1B_1/
SCOM3
PB4/TP1B_2/
PCK/SSEG8
PB5/PINT/
TP1A/SSEG9
PC0/TP0_0/
SDO/SSEG0/
KEY1
PC1/TP0_1/
SCK/SCL/
SSEG1/KEY2
PC2/TP1B_0/
SDI/SDA/
SSEG2/KEY3
PC3/TP1B_1/
SCS/SSEG3/
KEY4
Pin Name
PB2
TP1B_0
SCOM2
PB3
TP1B_1
SCOM3
PB4
TP1B_2
PCK
SSEG8
PB5
PINT
TP1A
SSEG9
PC0
TP0_0
SDO
SSEG0
KEY1
PC1
TP0_1
SCK
SCL
SSEG1
KEY2
PC2
TP1B_0
SDI
SDA
SSEG2
KEY3
PC3
TP1B_1
SCS
SSEG3
KEY4
Function
Register
SLCDCn
SLCDCn
SLCDCn
SLCDCn
SLCDCn
TKMnC1
SLCDCn
TKMnC1
SLCDCn
TKMnC1
SLCDCn
TKMnC1
TMPCn
TMPCn
TMPCn
TMPCn
TMPCn
TMPCn
TMPCn
TMPCn
SIMC0
SIMC0
SIMC0
SIMC0
SIMC0
SIMC0
SIMC0
Select
PBPU
PBPU
PBPU
PBPU
PCPU
PCPU
PCPU
PCPU
MFI3
NS
NS
NS
NS
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
ST
I/T
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM1 I/O
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM1 I/O
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM1 I/O
CMOS Peripheral clock output
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM1 I/O
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM0 I/O
CMOS SPI data output
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM0 I/O
CMOS SPI clock
NMOS I
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM1 I/O
NMOS I
CMOS General purpose I/O. Register enabled pull-up.
CMOS TM1 I/O
CMOS
LCD
LCD
LCD
LCD
LCD
LCD
LCD
LCD
O/T
5
Software controlled LCD COM
Software controlled LCD COM
Software controlled LCD SEG
Peripheral interrupt input
Software controlled LCD SEG
Software controlled LCD SEG
Touch key input
Software controlled LCD SEG
Touch key input
SPI data input
Software controlled LCD SEG
Touch key input
SPI slave select
Software controlled LCD SEG
Touch key input
2
2
C clock
C data I/O
Description
February 1, 2011