I 2 C Registers - Holtek BS86DH12C Manual

BS86DH12C
High Voltage Touch A/D Flash MCU with HVIO
I C Debounce Time Selection I
2
No Debounce
2 system clock debounce
4 system clock debounce
I C Registers
2
There are three control registers associated with the I
register IICA and one data register, IICD.
Register
Name
7
IICC0 —
IICC1 HCF
IICD D7
IICA IICA6
IICTOC IICTOEN
I 2 C Data Register
The IICD register is used to store the data being transmitted and received. Before the device writes
data to the I C bus, the actual data to be transmitted must be placed in the IICD register. After the
2
data is received from the I
reception of data from the I
• IICD Register
Bit 7
Name D7
R/W R/W
POR x
D7~D0: I
Bit 7~0
I C Address Register
2
The IICA register is the location where the 7-bit slave address of the slave device is stored. Bits
7~1 of the IICA register define the device slave address. Bit 0 is not defined. When a master device,
which is connected to the I
register, the slave device will be selected.
• IICA Register
Bit 7
Name IICA6
R/W R/W
POR 0
IICA6~IICA0: I
Bit 7~1
IICA6~IICA0 is the I
Bit 0 Unimplemented, read as "0"
Rev. 1.00
C Standard Mode (100kHz) I
2
f > 2MHz
SYS
f > 4MHz
SYS
f > 8MHz
SYS
I C Minimum f Frequency Requirements
2
SYS
C bus, IICC0, IICC1 and IICTOC, one address
2
6 5 4
— — —
HAAS HBB HTX
D6 D5 D4
IICA5 IICA4 IICA3
IICTOF IICTOS5 IICTOS4
I C Register List
2
C bus, the device can read it from the IICD register. Any transmission or
2
C bus must be made via the IICD register.
2
6 5 4
D6 D5 D4
R/W R/W R/W
x x x
C data register bit 7 ~ bit 0
2
C bus, sends out an address, which matches the slave address in the IICA
2
6 5 4
IICA5 IICA4 IICA3
R/W R/W R/W
0 0 0
C slave address
2
C slave address bit 6 ~ bit 0.
2
131
C Fast Mode (400kHz)
2
f > 5MHz
SYS
f > 10MHz
SYS
f > 20MHz
SYS
Bit
3 2 1
IICDEB1 IICDEB0 IICEN
TXAK SRW IAMWU
D3 D2 D1
IICA2 IICA1 IICA0
IICTOS3 IICTOS2 IICTOS1
3 2 1
D3 D2 D1
R/W R/W R/W
x x x
3 2 1
IICA2 IICA1 IICA0
R/W R/W R/W
0 0 0
October 26, 2018
0
—
RXAK
D0
—
IICTOS0
0
D0
R/W
x
"x": unknown
0
—
—
—