參數(shù)資料
型號: μPD78F9217Y
廠商: NEC Corp.
英文描述: 8 Bit Single Chip Microcontrollers(8 位單片微控制器)
中文描述: 8位單片機微控制器(8位單片微控制器)
文件頁數(shù): 75/148頁
文件大小: 621K
代理商: ΜPD78F9217Y
P
7
μ
P
SMB control register 0 (SMBC0)
Acknowledge
detection
circuit
Start condi-
tion detection
circuit
Stop condi-
tion detection
circuit
Serial clock counter
W
I
Prescaler
SMB clock selection register 0
(SMBCL0)
Internal bus
CLD0
DAD0
SMC0 DFC0
CL01
CL00
SMBE0 LREL0 WREL0 SPIE0 WTIM0 ACKE0
STT0 SPT0
Internal bus
Figure 7-37. Block Diagram of SMB0
TOS02 TOS01 TOS00 SVIN0 LVL01 LVL00
MSTS0 ALD0
EXC0
COI0
TRC0 ACKD0 STD0
SPD0
+
+
f
CC
/2
f
CC
Serial clock
control circuit
Serial clock wait
control circuit
SCLCTL0
AWTIM0
SCL0
SDA0
N-ch open-drain output
N-ch open-drain output
S
S
Slave address register 0 (SMBSVA0)
SMB shift register 0 (SMB0)
D
Q
Data hold
time correc-
tion circuit
Timeout count
&
control circuit
SCL
CTL0
AWTIM0
STIE0 TOEN0
TOCL00
INTSMBOV0
INTSMB0
TOCL01
f
CC
/2
6
f
CC
/2
7
f
CC
/2
8
f
XT
Noise
eliminator
Noise
eliminator
Reference
generator
SMB status register 0 (SMB0)
SMB mode register 0 (SMBM0)
SMB input level setting register 0 (SMBVI0)
CL00,
CL01
Acknowledge
detection circuit
EXC0
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