Motorola DSP56305 User Manual page 648

PROGRAMMING REFERENCE
HI32 Registers - Quick Reference (Sheet 6 of 8)
Reg Bit #
Mnemonic Name
HSTR TRDY
HTRQ
HRRQ
HF5-HF3
HINT
HREQ
HCVR 0 HC
7- HV6-HV0
1
15 HNMI
HRXM 31-
0
HRXS 31-
0
HTXR 31-
0
CVID 15- VID15-VID0 Vendor ID
CDID 0
31- DID15-DID0 Device ID
16
D-48
Transmitter Ready
Host Transmit Data Request 1
Host Receive Data Request 0
Host Flags
Host Interrupt A
Host Request
Host Command
Host Command Vector
Host Non Maskable Int. Req. 0
Host Master Receive Data
FIFO
Host Slave Receive Data
FIFO
Host Transmit Data FIFO
DSP56305 User's Manual
Val Function
1 transmit FIF O (6 deep) is
0 empty
transmit FIFO is not empty
host transmit FIFO is not full
0 host transmit FIFO is full
host receive FIFO is empty
1 host receive FIFO is not empty
0 HINTA signal is high
impedance
1 HINTA signal is driven low
0 HIRQ signal is deasserted
1 HIRQ signal is asserted (if
enabled)
0 no host command pending
1 host command pending
a maskable interrupt request
1 a non-maskable interrupt
request
$10
57
Comments Reset Type
HS PH
1 -
1 -
0 -
0 -
0 -
- 0
cleared when - -
the HC
interrupt
request is
serviced
default vector - default
via programm vector
able
(Section
6.10)
- 0
empty
empty
empty
hardwired - -
$1057
via programm - -
able
(Section
6.10)
MOTOROLA
PS
1
1
0
-
-
-
0
-
-
-
-