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Application:
SSI
PORT C
SSI Control Register (PCC)
X:$FFC1 Read/Write
Reset = $0000
SSI Serial Receive Register
SSI0 Address X:$FFF1 Read Only
SSI1 Address X:$FFF9 Read Only
Reset = $xxxx
SSI Serial Transmit Register
SSI0 Address X:$FFF1 Write Only
SSI1 Address X:$FFF9 Write Only
Reset = $xxxx
C - 34
DSP56156 SSI Programming Sheet
15 14 13 12 11 10
*
* * *
0
0
0
0
Figure C-32 SSI Control Register (PCC)
15 14 13 12 11 10
H I G H B Y T E
Figure C-33 SSI Serial Receive Register
15 14 13 12 11 10
H I G H B Y T E
Figure C-34 SSI Serial Transmit Register
PROGRAMMING SHEETS
Date:
Programmer:
SSI Port C Pin Control
0 = General Purpose I/O Pin
1 = SSI Pin
9
8
7
CC11 CC10 CC9 CC8 CC7 CC6 CC5 CC4 CC3 CC2 CC1 CC0
0
*
SSI Receive Data (usually read by program)
9
8
7
SSI Transmit Data (usually loaded by program)
9
8
7
Sheet 1 of 5
6
5
4
3
2
1
= Reserved, Program as zero
6
5
4
3
2
1
L O W B Y T E
6
5
4
3
2
1
L O W B Y T E
MOTOROLA
0
0
0
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