M37280MF Datasheet, PDF (35/178 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

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MITSUBISHI MICROCOMPUTERS
M37280MF–XXXSP, M37280MK–XXXSP
M37280EKSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
12.6.2 I²C Address Register
The I²C address register (address 00F716) consists of a 7-bit slave
address and a read/write bit. In the addressing mode, the slave ad-
dress written in this register is compared with the address data to be
received immediately after the START condition are detected.
(1) Bit 0: Read/Write Bit (RBW)
Not used when comparing addresses, in the 7-bit addressing mode.
In the 10-bit addressing mode, the first address data to be received
is compared with the contents (SAD6 to SAD0 + RBW) of the I²C
address register.
The RBW bit is cleared to “0” automatically when the stop condition
is detected.
(2) Bits 1 to 7: Slave Address (SAD0–SAD6)
These bits store slave addresses. Regardless of the 7-bit address-
ing mode and the 10-bit addressing mode, the address data trans-
mitted from the master is compared with the contents of these bits.
I²C Address Register
b7 b6 b5 b4 b3 b2 b1 b0
I²C address register (S0D) [Address 00F716]
B
Name
0 Read/write bit
(RBW)
1 _{Slave address}
to _{(SAD0 to SAD6)}
7
Functions
After reset R W
0: Read
1: Write
0 _R—
The address data transmitted from
the master is compared with the
contents of these bits.
0 _RW
Fig. 12.6.3 I²C Address Register
Rev. 1.0
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