M3727GM6 Datasheet, PDF (121/129 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER and ON-SCREEN DISPLAY CONTROLLER

M3727GM6/M8–XXXSP/FP M37272E8SP/FP
Address 00F716
I²C Address Register
b7 b6 b5 b4 b3 b2 b1 b0
I²C address register (S0D) [Address 00F716]
B Name
0 Read/write bit
(RBW)
Functions
After reset R W
<Only in 10-bit addressing (in slave) mode>
The last significant bit of address data is
compared.
0: Wait the first byte of slave address after
START condition
(read state)
1: Wait the first byte of slave address after
RESTART condition
(write state)
0 R—
1 Slave address <In both modes>
to (SAD0 to SAD6) The address data is compared.
7
0 RW
Address 00F816
I²C Status Register
b7 b6 b5 b4 b3 b2 b1 b0
I²C status register (S1) [Address 00F816]
B
Name
Functions
After reset R W
0 Last receive bit (LRB)
(See note)
0 : Last bit = “0 ”
1 : Last bit = “1 ”
Indeterminate _{R —}
(See note)
1 General call detecting flag 0 : No general call detected
0 _R—
(AD0) (See note)
1 : General call detected _{(See note)}
2 Slave address comparison 0 : Address mismatch
0 _R—
flag (AAS) (See note)
1 : Address match
(See note)
3 Arbitration lost detecting flag 0 : Not detected
(AL) (See note)
1 : Detected
0 _R—
(See note)
4 I2C-BUS interface interrupt
request bit (PIN)
0 : Interrupt request issued
1 : No interrupt request issued
1 _RW
5 Bus busy flag (BB)
0 : Bus free
1 : Bus busy
0 _RW
6, 7 Communication mode
specification bits
(TRX, MST)
b7 b6
0 0 : Slave recieve mode
0 1 : Slave transmit mode
1 0 : Master recieve mode
1 1 : Master transmit mode
0 _RW
Note : These bits and flags can be read out, but cannnot be written.
Rev.1.00 Apr 01, 2001 page 121 of 127
REJ03B0132-0100Z