gc80c521a CORERIVER Semiconductor, gc80c521a Datasheet - Page 66

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

2.
1) I2CS = 1
2) I2CIF = 1
(if SP_IE = 1)
From Master To Slave
From Master To Slave
From Slave To Master
From Slave To Master
Action
S
Action
S/W
6.12. I2C : Slave Receiver Flow
H/W
SLA + R/W(0)
: Slave Not ACK for Address
1.
I2CEN = 1
4.
1) I2CRW = 0
Fail Sequence
5_2.
1) Send No ACK if
Address not
matched
3.
1) I2C_SLA = SLA
2) I2CIF = 0
6_2.
1) I2CIF = 1
2) I2CACK = 1
3) I2C_DA = 1
5_1.
1) Send ACK
If Address
matched
7_2.
1) I2CIF = 0
/A
A
P
DATA
6_1.
1) I2CIF = 1
2) I2CACK = 0
3) I2C_DA = 1
8_2.
1) I2CP = 1
2) I2CIF = 1
(if SP_IE = 1)
9_2.
1) I2CIF = 0
7_1_2.
1) Send No ACK if
Buffer full
2) I2COF = 1
7_1_1.
1) Send ACK
If Buffer empty
9_1_2.
1) I2CIF = 0
/A
A
9_1_1.
1) Read DATA
2) I2CIF = 0
P
P
MiDAS1.0B Family
8_1_2.
1) I2CIF = 1
2) I2CACK = 1
3) I2C_DA = 0
11_1_2.
1) I2CIF = 0
Success Sequence
: Slave Not ACK for DATA
8_1_1.
1) I2CIF = 1
2) I2CACK = 0
3) I2C_DA = 0
Fail Sequence
11_1_1.
1) I2CIF = 0
10_1_2.
1) I2CP = 1
2) I2CIF = 1
(if SP_IE = 1)
10_1_1.
1) I2CP = 1
(if SP_IE = 1)
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