參數(shù)資料
型號(hào): UPD703201
廠商: NEC Corp.
英文描述: 32-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 32位單晶片微控制器
文件頁(yè)數(shù): 45/98頁(yè)
文件大?。?/td> 797K
代理商: UPD703201
Preliminary Product Information U15436EJ1V0PM
45
μ
PD703201, 703201Y, 703204, 703204Y, 70F3201, 70F3201Y, 70F3204, 70F3204Y
12.3 I
2
C Bus (I
2
C) (
μ
PD703201Y, 703204Y, 70F3201Y, 70F3204Y)
The I
2
C bus has the following features.
{
Two modes
Operation stop mode (used when serial transfers are not performed to enable a reduction in power
consumption)
I
2
C bus mode (supporting multi masters)
The following figure shows the configuration of the I
2
C bus
Internal bus
IIC status register 0
(IICS)
IIC control register
(IICC)
Slave address
register (SVA)
Noise
eliminator
Noise
eliminator
Match
signal
I
IC shift register
(IIC)
SO latch
IICE
D Q
SET
CLEAR
CL1,
CL0
SDA
SCL
N-ch open
drain output
N-ch open
drain output
Data hold
time correction
circuit
ACK detector
Wake up controller
ACK detector
Stop condition
detector
Serial clock counter
Interrupt request
signal generator
Serial clock controller
Serial clock wait
controller
Prescaler
INTIIC
f
xx
TM4 output
CLD
IIC clock select
register (IICCL)
IIC function expansion
register (IICX)
Internal bus
LREL
WREL
SPIE
WTIM
ACKE
STT
SPT
MSTS
ALD
EXC
COI
TRC
ACKD
STD
SPD
Start condition
detector
DAD
SMC
DFC
CL1
CL0
CLX
Remark
f
XX
: Main clock frequency
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