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| EZ80L92MCU Datasheet, PDF (190/241 Pages) Zilog, Inc. – eZ80Acclaim Flash Microcontrollers | |||
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eZ80L92 MCU
Product Specification
175
Table 96. ZDI Read/Write Control Register Functions (ZDI_RW_CTL = 16h in the ZDI
Register Write-Only Address Space) (Continued)
Hex
Value
Command
Hex
Value
Command
06
Read SP
86
Write SP
In ADL mode, SP = SPL.
In ADL mode, SP = SPL.
In Z80 mode, SP = SPS.
In Z80 mode, SP = SPS.
07
Read PC
87
Write PC
ZDI_RD_U â PC[23:16]
PC[23:16] â ZDI_WR_U
ZDI_RD_H â PC[15:8]
PC[15:8] â ZDI_WR_H
ZDI_RD_L â PC[7:0]
PC[7:0] â ZDI_WR_L
08
Set ADL
ADL â 1
88
Reserved
09
Reset ADL
ADL â 0
89
Reserved
0A
Exchange CPU register sets 8A
Reserved
AF â AFâ
BC â BCâ
DE â DEâ
HL â HLâ
0B
Read memory from current 8B
Write memory from current PC
PC value, increment PC
value, increment PC
Note: The eZ80® CPUâs alternate register set (Aâ, Fâ, Bâ, Câ, Dâ, Eâ, HLâ) cannot be read directly. The
ZDI programmer must execute the exchange instruction (EXX) to gain access to the alternate
eZ80® CPU register set.
PS013012-1004
PRELIMINARY
ZiLOG Debug Interface
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