M37160M8 Datasheet, PDF (119/131 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

M37160M8/MA/MF-XXXSP/FP,M37160EFSP/FP
Address 00F716
I²C Address Register
b7 b6 b5 b4 b3 b2 b1 b0
I²C address register (S0D) [Address 00F716]
B
Name
Functions
After reset R W
0 Read/write bit <Only in 10-bit addressing (in slave) mode>
0
R—
(RBW)
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)
1 Slave address ^{<In both modes>}
to (SAD0 to SAD6) The address data is compared.
7
0
RW
Address 00F816
I²
b7
r
b3 b2 b1 b0
I²C status register (S1) [Address 00F816]
B
Name
Functions
After reset _{R W}
0 Last receive bit (LRB)
(See note)
1 General call detecting flag
(AD0) (See note)
2 Slave address comparison
flag (AAS) (See note)
3 Arbitration lost detecting flag
(AL) (See note)
4 I²C-BUS interface interrupt
request bit (PIN)
5 Bus busy flag (BB)
6, 7 Communication mode
specification bits
(TRX, MST)
0 : Last bit = “0 ”
1 : Last bit = “1 ”
Indeterminate _{R —}
(See note)
0 : No general call detected
0
1 : General call detected _{(See note)}
0 : Address mismatch
0
1 : Address match
(See note)
0 : Not detected
1 : Detected
0
(See note)
R—
R—
R—
0 : Interrupt request issued
1 : No interrupt request issued
1
RW
0 : Bus free
1 : Bus busy
0
RW
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.1.01 2003.11.13 page 119 of 130