Analog Devices adsp-2100 User Manual

5Serial Ports
5 – 7
load of a non-data register with immediate data or register-to-register
move (instruction types 3, 7 and 17). For example, the following
instruction would ready SPORT1 to transmit a serial value, assuming
SPORT1 is configured and enabled:
TX1 = AX0; {the contents of AX0 are transmitted}
{on SPORT1}
The following instruction would access a serial value received on SPORT0:
AY0 = RX0; {the contents of SPORT0 receive register}
{is transferred to AY0}
Because the SPORTs are interrupt driven, these instructions would
typically be executed within a interrupt service routine in response to a
SPORT interrupt.
5.4 SPORT ENABLE
SPORTs are enabled through bits in the system control register. This
register is mapped to data memory address 0x3FFF. Bit 12 enables
SPORT0 if it is a 1, and bit 11 enables SPORT1 if it is a 1. Both of these bits
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
System Control Register
0x3FFF
SPORT0 Enable
1 = enabled, 0 = disabled
SPORT1 Enable
1 = enabled, 0 = disabled
SPORT1 Configure
1 = serial port, 0 = FI, FO, IRQ0, IRQ1, SCLK
Figure 5.2 SPORT Enables In The System Control Register

Analog Devices adsp-2100 Specifications

General

Brand	Analog Devices
Model	adsp-2100
Category	Computer Hardware
Language	English