7 - 14
DSP96002 USER’S MANUAL
MOTOROLA
7.4.4 HI Programming Model
The HI block diagram is shown in Figure 7-9. The HI has two programming models - one for the DSP96002
programmer and one for the external host processor programmer. In most cases, the notation used reflects
the DSP96002 perspective. The HI - DSP96002 Programming Model is shown in Figure 7-10. The HI - Ex-
ternal Host Processor Programming Model is shown in Figure 7-11. The HI Interrupt Structure is shown in
Figure 7-13. The DSP96002 has two HIs. The registers of the two HIs are identical except for the addresses.
Their names have an A or B suffix identifying the port they are connected to.
7.4.5 Host Transmit Data Register (HTX) - DSP96002 Side
The Host Transmit register (HTX) is used for DSP96002 to host processor data transfers. The HTX register
is viewed as a 32-bit write-only register by the DSP96002. Writing the HTX register clears HTDE. The
DSP96002 may program the HTIE bit to cause a Host Transmit Data interrupt when HTDE is set. The HTX
register is transferred as 32-bit data to the Receive Register RX if both the HTDE bit and the Receive Data
Full RXDF status bit are cleared. This transfer operation sets RXDF and HTDE.
Register
Register
HW/SW
HOST
INIT
INIT
INIT
Comments
Name
Contents Reset
Reset
TREQ=1
TREQ=0
TREQ=1
RREQ=0
RREQ=1
RREQ=1
HCR
HYWE
0 - - - -
HYRE
0 - - - -
HXWE
0 - - - -
HXRE
0 - - - -
HPWE
0 - - - -
HPRE
0 - - - -
HRES
1 1 - - -
HF3-HF2
0 - - - -
HCIE
0 - - - -
HTIE
0 - - - -
HRIE
0 - - - -
HSR
HYWP
0 0 0 - 0
HYRP
0 0 0 - 0
HXWP
0 0 0 - 0
HXRP
0 0 0 - 0
HPWP
0 0 0 - 0
HPRP
0 0 0 - 0
HDMA
0 - - - -
HF1-HF0
0 - - - -
HCP
0 - - - -
HTDE
1 1 - 1 1
HRDF
0 0 0 - 0
Figure 7-8. Host Interface Reset - DSP96002 Side
Summary of Contents for DSP96002
Page 3: ...1 2 DSP96002 USER S MANUAL MOTOROLA ...
Page 38: ...MOTOROLA DSP96002 USER S MANUAL 3 15 Figure 3 4 Modulo Arithmetic Unit Block Diagram ...
Page 39: ...3 16 DSP96002 USER S MANUAL MOTOROLA ...
Page 53: ...4 14 DSP96002 USER S MANUAL MOTOROLA ...
Page 76: ...MOTOROLA DSP96002 USER S MANUAL 5 23 Figure 5 8 Address Modifier Summary ...
Page 86: ...6 10 DSP96002 USER S MANUAL MOTOROLA ...
Page 101: ...MOTOROLA DSP96002 USER S MANUAL 7 15 Figure 7 9 HI Block Diagram One Port ...
Page 140: ...7 54 DSP96002 USER S MANUAL MOTOROLA ...
Page 166: ...9 10 DSP96002 USER S MANUAL MOTOROLA ...
Page 181: ...MOTOROLA DSP96002 USER S MANUAL 10 15 Figure 10 8 Program Address Bus FIFO ...
Page 337: ...MOTOROLA DSP96002 USER S MANUAL A 149 ...
Page 404: ...A 216 DSP96002 USER S MANUAL MOTOROLA PC xxxx D ...
Page 460: ...A 272 DSP96002 USER S MANUAL MOTOROLA SIOP Not affected ...
Page 484: ...A 296 DSP96002 USER S MANUAL MOTOROLA SSH PC SSL SR SP 1 SP ...
Page 519: ...MOTOROLA DSP96002 USER S MANUAL A 331 ...
Page 718: ...MOTOROLA DSP96002 USER S MANUAL B 199 ...
Page 871: ... MOTOROLA INC 1994 MOTOROLA TECHNICAL DATA SEMICONDUCTOR M Addendum ...
Page 888: ...MOTOROLA INDEX 1 INDEX ...
Page 889: ......