AM8530H AMD [Advanced Micro Devices], AM8530H Datasheet - Page 156

• Manufacturer Part Number: AM8530H
• Description: Serial Communications Controller
• Manufacturer: AMD [Advanced Micro Devices]

SCC Application Notes
7.2
7.2.1
This section describes the use of the SCC in polled Asynchronous mode. The device can
be set with 5 to 8 bits per character, 1, 1-
rates. In this particular example, 8 bits per character, 2 stop bits and 9600 baud rate are
used. An external 2.4576 MHz, crystal oscillator is used for baud-rate generation. The
SCC can be programmed for local loopback for on-board diagnostics. The user can make
use of this feature to test-program the part without additional hardware to simulate an ac-
tual transmit and receive environment.
Register
WR0
WR1
WR2
WR3
WR4
WR5
WR6
WR7
WR9
WR10
WR11
WR12
WR13
WR14
WR15
RR0
RR1
RR3
RR10
POLLED ASYNCHRONOUS MODE
Introduction
7
0
0
0
1
0
0
1
0
0
0
0
6
0
0
1
0
0
1
1
1
0
0
Table 7–3. SCC Register Reset Values
Hardware Reset
5
0
0
0
0
1
1
0
0
0
0
0
0
0
1
0
0
4
0
0
0
0
3
0
0
0
0
0
1
0
1
0
0
0
2
0
1
0
0
0
0
0
0
1
1
0
0
1
/
2
1
0
0
0
0
0
0
0
0
1
0
0
, or 2 stop bits, and a wide range of baud
0
0
0
0
0
0
0
0
0
0
0
0
7
0
0
0
0
0
0
1
0
0
6
0
0
0
1
1
0
0
0
Channel Reset
5
0
0
1
1
0
0
0
0
4
0
0
0
1
0
0
0
0
0
0
1
0
0
3
0
0
0
2
0
1
0
0
0
0
1
1
0
0
AMD
1
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
7–7