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Application:
HI
Port B
Control Register
(PBC)
X:$FFEC Read/Write
Reset = $000000
0 = disable/1 = enable — interrupt on HRDF
0 = disable/1 = enable — interrupt on HTDE
Host Command Interrupt Enable (HCIE)
0 = disable/1 = enable — interrupt on HCP
MOTOROLA
Port B
• • •
23
15
14
13
*
*
*
*
0
0
0
0
$0
* = Reserved, write as 0
Port B Control Register (PBC)
DSP Side
Host Receive Interrupt Enable (HRIE)
Host Transmit Interrupt Enable (HTIE)
Host Flags (HF3, HF2)
general purpose read/write flags
Host Control Register (HCR)
X:$FFE8 Read/Write
Reset = $00
DSP56012 User's Manual
PBC1 PBC0
0
0
General Purpose I/O (Reset Condition)
0
1
1
0
Host Interface (with HACK Pin as GPIO)
1
1
12
11
10
9
8
7
*
*
*
*
*
*
0
0
0
0
0
0
$0
• • •
23
7
*
*
0
0
* = Reserved, write as 0
Host Control Register (HCR)
Programming Reference
Date:
Programmer:
Sheet 1 of 5
Function
Host Interface
Reserved
6
5
4
3
2
1
PBC1 PBC0
*
*
*
*
*
0
0
0
0
0
$0
6
5
4
3
2
1
HF3
HF2
HCIE
HTIE
*
*
0
0
0
0
HRIE
B-19
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