Z89135 Datasheet, PDF (45/66 Pages) Zilog, Inc. – Low-Cost DTAD Controller

Zilog
Field
Outgoing [0] (B)00
Outgoing [1] (B)01
Outgoing [2] (B)02
Outgoing [3] (B)03
Outgoing [4] (B)04
Outgoing [5] (B)05
Outgoing [6] (B)06
Outgoing [7] (B)07
Field
Incoming [8] (B)08
Incoming [9] (B)09
Incoming [a] (B)0A
Incoming [b] (B)0B
Incoming [c] (B)0C
Incoming [d] (B)0D
Incoming [e] (B)0E
Incoming [f] (B)0F
.
Field
DSP_ext0
Mail Box
DSP_ext1
Mail Box
DSP_ext2
Mail Box
DSP_ext3
Mail Box
Table 10. Z8 Outgoing Registers
(Read Only from DSP)
Position
76543210
76543210
76543210
76543210
76543210
76543210
76543210
76543210
Attrib
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Value
%NN
%NN
%NN
%NN
%NN
%NN
%NN
%NN
Z89135/136 (ROMless)
Low-Cost DTAD Controller
Label
1
(B)00/DSP_ext0_hi
(B)01/DSP_ext0_lo
(B)02/DSP_ext1_hi
(B)03/DSP_ext1_lo
(B)04/DSP_ext2_hi
(B)05/DSP_ext2_lo
(B)06/DSP_ext3_hi
(B)07/DSP_ext3_lo
Table 11. Z8 Incoming Registers
(Write Only from DSP
Position
76543210
76543210
76543210
76543210
76543210
76543210
76543210
76543210
Attrib
R
W
R
W
R
W
R
W
R
W
R
W
R
W
R
W
Value
%NN
%NN
%NN
%NN
%NN
%NN
%NN
%NN
Label
DSP_ext0_hi
No Effect
DSP_ext0_lo
No Effect
DSP_ext1_hi
No Effect
DSP_ext1_lo
No Effect
DSP_ext2_hi
No Effect
DSP_ext2_lo
No Effect
DSP_ext3_hi
No Effect
DSP_ext3_lo
No Effect
Table 12. DSP Mailbox Registers
Position
fedcba9876543210
fedcba9876543210
fedcba9876543210
fedcba9876543210
Attrib
R
W
R
W
R
W
R
W
Value
%NNNN
%NNNN
%NNNN
%NNNN
Label
(B)00, (B)01
(B)08, (B)09
(B)02, (B)03
(B)0A, (B)0B
(B)04, (B)05
(B)0C, (B)0D
(B)06, (B)07
(B)0E, (B)0F
DS97TAD0300
PRELIMINARY
1-45