| Unused Bits 31 : 8
STA Bits 7 : 0
R
0xF8
Status Information Byte
Code Status
0x00: Bus error
0x08: START condition transmitted
0x10: Repeated START condition transmitted
0x18: Address + Write bit transmitted, ACK received
0x20: Address + Write bit transmitted, ACK not received
0x28: Data byte transmitted in master mode, ACK received
0x30: Data byte transmitted in master mode, ACK not received
0x38: Arbitration lost in address or data byte
0x40: Address + Read bit transmitted, ACK received
0x48: Address + Read bit transmitted, ACK not received
0x50: Data byte received in master mode, ACK transmitted
0x58: Data byte received in master mode, not ACK transmitted
0x60: Slave address + Write bit received, ACK transmitted
0x68: Arbitration lost in address as master, slave address + Write bit received, ACK transmitted
0x70: General Call address received, ACK transmitted
0x78: Arbitration lost in address as master, General Call address received, ACK transmitted
0x80: Data byte received after slave address received, ACK transmitted
0x88: Data byte received after slave address received, not ACK transmitted
0x90: Data byte received after General Call received, ACK transmitted
0x98: Data byte received after General Call received, not ACK transmitted
0xA0: STOP or repeated START condition received in slave mode
0xA8: Slave address + Read bit received, ACK transmitted
0xB0: Arbitration lost in address as master, slave address + Read bit received, ACK transmitted
0xB8: Data byte transmitted in slave mode, ACK received
0xC0: Data byte transmitted in slave mode, ACK not received
0xC8: Last byte transmitted in slave mode, ACK received
0xD0: Second Address byte + Write bit transmitted, ACK received
0xD8: Second Address byte + Write bit transmitted, ACK not received
0xF8: No relevant status information, INT_FLAG=0
Others: Reserved
Команда U-Boot для чтения регистра md 5002010 1 md 5002410 1 md 5002810 1 md 5002c10 1 md 5003010 1 md 7081410 1
Bit fields structure
typedef union twi_stat
{
struct
{
unsigned sta : 8;
unsigned unused0 : 24;
} b;
unsigned long w;
} TWI_STAT
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