UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 485

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(2) Data
WREL0
INTIIC0
WREL0
INTIIC0
ACKD0
MSTS0
ACKD0
MSTS0
WTIM0
ACKE0
WTIM0
ACKE0
Processing by slave device
Transfer lines
Processing by master device
SPD0
TRC0
SDA0
SPD0
TRC0
Note To cancel master wait, write “FFH” to IIC0 or set WREL0.
STD0
SPT0
SCL0
STD0
SPT0
STT0
STT0
IIC0
IIC0
D0
8
(When 8-Clock Wait Is Selected for Master, 9-Clock Wait Is Selected for Slave) (2/3)
H
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
Receive
Transmit
ACK
9
Figure 17-28. Example of Slave to Master Communication
IIC0 ← data
D7
IIC0 ← FFH Note
1
Note
CHAPTER 17 SERIAL INTERFACE IIC0
D6
2
D5
3
User’s Manual U17260EJ6V0UD
D4
4
D3
5
D2
6
D1
7
D0
8
ACK
9
IIC0 ← data
D7
1
IIC0 ← FFH Note
Note
D6
2
D5
3
485