Z89139 View Datasheet(PDF) - Zilog
Part Name
Description
MFG CO.
'Z89139' PDF : 66 Pages View PDF
Z89138/Z89139
Voice Processing Controllers
DSP Analog Data Registers
The D/A conversion is DSP driven by sending 10-bit data
to the EXT5 of the DSP. The six remaining bits of EXT5 are
not used (Figure 35).
Zilog
A/D supplies 8-bit data to the DSP through the register
EXT5 of the DSP. From the 16 bits of EXT5, only bits 2
through 9 are used by the A/D (Figure 36). Bits 0 and 1 are
padded with zeroes.
F E DCBA 9 8 7 6 5 4 3 2 1 0
Reserved
10-Bit Data for D/A
(Write Only)
Reserved
Figure 35. EXT5 Register D/A Mode Definition
F E D CBA 9 8 7 6 5 4 3 2 1 0
Reserved
8-Bit Data From A/D Converter
(Read Only)
Reserved
Figure 36. EXT5 Register A/D Mode Definition
48
PRELIMINARY
DS97TAD0201
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