gc80c521a CORERIVER Semiconductor, gc80c521a Datasheet - Page 63

• Manufacturer Part Number: gc80c521a
• Description: Flash / Isp / Iap 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

2.
1) I2CS = 1 if the bus free
2) I2CIF = 1
(if SP_IE = 1)
From Master To Slave
From Slave To Master
Action
Action
H/W
S/W
6.12. I2C : Master Transmitter Flow
S
SLA + R/W(0)
1.
1) I2CEN = 1
2) SGEN = 1
3.
1) I2C_DAT = SLA + R/W(0)
2) I2CIF = 0
4_2.
1) I2CACK = 1
2) I2CIF = 1
4_1.
1) I2CACK = 0
2) I2CIF = 1
/A
A
5_2.
1) I2CIF = 0
2) PGEN = 1
P
6_2.
1) I2CP = 1
2) I2CIF = 1
(if SP_IE = 1)
DATA
Fail Sequence : Slave Not ACK
5_1.
1) I2C_DAT = DATA1
2) I2CIF = 0
7_2.
1) I2CIF = 0
6_1.
1) I2CACK = 0
2) I2CIF = 1
A
P
7_1.
1) PGEN = 1 if last byte
2) I2CIF = 0
Success Sequence
MiDAS1.0B Family
8_1.
1) I2CP = 1
2) I2CIF = 1
(if SP_IE = 1)
9_1.
1) I2CIF = 0
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