Rainbow Electronics W90N740 - Manual (Page 161)

W90N740
Publication Release Date: November 26, 2004
- 157 - Revision A4
RDAIE [0]: Receive Data Available Interrupt (Irpt_RDA) Enable and
Time-out Interrupt (Irpt_TOUT) Enable
0 = Mask off Irpt_RDA and Irpt_TOUT
1 = Enable Irpt_RDA and Irpt_TOUT
Divider Latch (Low Byte) Register (DLL)
Register Address R/W Description Reset Value
DLL 0xFFF8.0000 R/W Divisor Latch Register (LS)
(DLAB = 1)
0x0000.0000
7 6 5 4 3 2 1 0
Baud Rate Divider (Low Byte)
Baud Rate Divisor (Low Byte) [7:0]
The low byte of the baud rate divider
Divisor Latch (High Byte) Register (DLM)
Register Address R/W Description Reset Value
DLM 0xFFF8.0004 R/W Divisor Latch Register (MS)
(DLAB = 1)
0x0000.0000
7 6 5 4 3 2 1 0
Baud Rate Divider (High Byte)
Baud Rate Divisor (High Byte) [7:0]
The high byte of the baud rate divider
This 16-bit divider {DLM, DLL} is used to determine the baud rate as follows
Baud Rate = Crystal Clock / {16 * [Divisor + 2]}
Note: This definition is different from 16550