M30280F6HP RENESAS [Renesas Technology Corp], M30280F6HP Datasheet - Page 212

• Manufacturer Part Number: M30280F6HP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

M
R
R
1
e
E
6
Figure 14.22 I
. v
J
C
0
2
9
2 /
0 .
SDA2
B
SCL2
8
0
0
IICM
IICM2, SWC, ALS, SWC2, SDHI : Bits in the UiSMR2 register
STSPSEL, ACKD, ACKC
NOTES:
This diagram applies to the case where the SMD2 to SMD0 bits in the UiMR register is set to "010
register is set to "1".
0
G
4
1. If the IICM bit is set to "1", the pin can be read even when the PD7_1 bit is set to "1" (output mode).
J
7
o r
a
0 -
. n
u
2
p
3
0
, 1
0
(
M
Filter
Noise
2
2
C bus Mode Block Diagram
1
0
6
0
Noise
Filter
7
C
2 /
Delay
circuit
ACKC=1
, 8
ACKD bit
IICM=1
page 192
IICM=0
M
Falling edge
detection
1
UART2
6
: Bits in the UiSMR register
: Bits in the UiSMR4 register
STSPSEL=0
C
I/O port
STSPSEL=1
STSPSEL=0
Start condition
detection
Stop condition
detection
ACKC=0
2 /
f o
8
STSPSEL=1
3
) B
8
D
5
T
Q
Q
R
SDHI
Arbitration
Port register
(1)
Internal clock
External
clock
ALS
SWC2
S
R
S
R
CLK
control
SCL
SDA
Q
Start and stop condition generation block
Reception register
Transmission
register
9th bit falling edge
STSP
Bus
busy
STSP
UART2
UART2
UART2
SWC
9th bit
D
D
T
T
Q
Q
IICM2=1
ACK
2
" and the IICM bit in the UiSMR
IICM=1 and
IICM2=0
IICM2=1
IICM=1 and
IICM2=0
NACK
Start/stop condition
detection interrupt
request
UART2 transmit,
NACK interrupt
request
DMA0, DMA1 request
(UART1: DMA0 only)
DMA0
(UART0, UART2)
UART2 receive,
ACK interrupt request,
DMA1 request
14. Serial I/O