Rainbow Electronics AT75C310 - Manual (Page 74)

AT75C310
74
USART Receive Counter Register
Name: US_RCR
Access Type: Read/write
• RXCTR: Receive Counter
RXCTR must be loaded with the size of the receive buffer.
0: Stop peripheral data transfer dedicated to the receiver.
1 - 65535: Start peripheral data transfer if RXRDY is active.
USART Transmit Pointer Register
Name: US_TPR
Access Type: Read/write
• TXPTR: Transmit Pointer
TXPTR must be loaded with the address of the transmit buffer.
31 30 29 28 27 26 25 24
– – – – – – – –
23 22 21 20 19 18 17 16
– – – – – – – –
15 14 13 12 11 10 9 8
RXCTR
7 6 5 4 3 2 1 0
RXCTR
31 30 29 28 27 26 25 24
TXPTR
23 22 21 20 19 18 17 16
TXPTR
15 14 13 12 11 10 9 8
TXPTR
7 6 5 4 3 2 1 0
TXPTR