EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 320

• Manufacturer Part Number: EZ80F91MCU
• Description: eZ80Acclaim-TM Flash Microcontrollers
• Manufacturer: ZILOG [Zilog, Inc.]

PS019209-0504
Table 192. ZDI Read/Write Control Register Functions*
(ZDI_RW_CTL = 16h in the ZDI Register Write Only Address Space)
Hex
Value
00
01
02
03
04
05
06
07
08
Note: *The CPU’s alternate register set (A’, F’, B’, C’, D’, E’, HL’) cannot be read directly. The ZDI
programmer must execute the exchange instruction (EXX) to gain access to the alternate
CPU register set.
Command
Read {MBASE, A, F}
ZDI_RD_U
ZDI_RD_H
ZDI_RD_L
Read BC
ZDI_RD_U
ZDI_RD_H
ZDI_RD_L
Read DE
ZDI_RD_U
ZDI_RD_H
ZDI_RD_L
Read HL
ZDI_RD_U
ZDI_RD_H
ZDI_RD_L
Read IX
ZDI_RD_U
ZDI_RD_H
ZDI_RD_L
Read IY
ZDI_RD_U
ZDI_RD_H
ZDI_RD_L
Read SP
In ADL mode, SP = SPL.
In Z80 mode, SP = SPS.
Read PC
ZDI_RD_U
ZDI_RD_H
ZDI_RD_L
Set ADL
ADL
1
P R E L I M I N A R Y
A
C
E
L
IXL
IYL
PC[7:0]
MBASE
F
BCU
B
DEU
D
HLU
H
IXU
IXH
IYU
IYH
PC[23:16]
PC[15:8]
Hex
Value
80
81
82
83
84
85
86
87
88
Command
Write AF
MBASE
F
A
Write BC
BCU
B
C
Write DE
DEU
D
E
Write HL
HLU
H
L
Write IX
IXU
IXH
IXL
Write IY
IYU
IYH
IYL
Write SP
In ADL mode, SP = SPL.
In Z80 mode, SP = SPS.
Write PC
PC[23:16]
PC[15:8]
PC[7:0]
Reserved
ZDI_WR_L
ZDI_WR_H
ZDI_WR_L
ZDI_WR_H
ZDI_WR_L
ZDI_WR_L
ZDI_WR_H
ZDI_WR_H
Product Specification
ZDI_WR_L
ZDI_WR_L
ZDI_WR_U
ZDI_WR_H
ZDI_WR_U
ZDI_WR_H
ZDI_WR_U
ZDI_WR_U
ZDI_WR_U
ZiLOG Debug Interface
ZDI_WR_L
ZDI_WR_U
ZDI_WR_H
ZDI_WR_U
eZ80F91 MCU
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