Checkpoint Systems Inc. EVOLVES10 Manual De Usuario
Chapter 2 – SocketModem (MT5600SMI & MT5656SMI)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342D)
60
SCR – Scratch Register
(Addr = 7)
The Scratchpad Register is a read-write register at location 7. This register is not used by the modem and
can be used by the host for temporary storage.
can be used by the host for temporary storage.
Divisor Registers
(Addr = 0 and 1, DLAB = 1)
The Divisor Latch LS (least significant byte) and Divisor Latch MS (most significant byte) are two read-write
registers at locations 0 and 1 when DLAB = 1, respectively.
The baud rate is selected by loading each divisor latch with the appropriate hex value.
Programmable values corresponding to the desired baud rate are listed in Table on following page.
registers at locations 0 and 1 when DLAB = 1, respectively.
The baud rate is selected by loading each divisor latch with the appropriate hex value.
Programmable values corresponding to the desired baud rate are listed in Table on following page.
Divisor Latch (Hex)
MS
LS
Divisor (Decimal)
Baud Rate
06 00
1536
75
04 17
1047
110
03 00
768
150
01 80
384
300
00 C0
192
600
00 60
96
1200
00 30
48
2400
00 18
24
4800
00 0C
12
9600
00 06
6
19200
00 04
4
28800
00 03
3
38400
00 02
2
57600
00 01
1
115600
00 00
NA
230400
Programmable Baud Rates