EZ80F91MCU Datasheet, PDF (324/396 Pages) Zilog, Inc. – eZ80Acclaim-TM Flash Microcontrollers

eZ80F91 MCU
Product Specification
305
Table 195. ZDI Write Memory Register
(ZDI_WR_MEM = 30h in the ZDI Register Write Only Address Space)
Bit
7
6
5
4
3
2
1
0
Reset
X
X
X
X
X
X
X
X
CPU Access
W
W
W
W
W
W
W
W
Note: X = Undefined; W = Write.
Bit
Position
[7:0]
ZDI_WR_MEM
Value Description
00h–
FFh
The 8-bit data that is transferred to the ZDI slave following
a Write to this address is written to the address indicated
by the current Program Counter. The Program Counter is
incremented following each 8 bits of data. In Z80
MEMORY mode, ({MBASE, PC[15:0]}) ← 8 bits of
transferred data. In ADL MEMORY mode, (PC[23:0]) ←
8-bits of transferred data.
eZ80 Product ID Low and High Byte Registers
The eZ80 Product ID Low and High Byte registers combine to provide a means for
an external device to determine the particular eZ80^® product being addressed.
See Tables 196 and 197.
Table 196. eZ80 Product ID Low Byte Register
(ZDI_ID_L = 00h in the ZDI Register Read Only Address Space,
ZDI_ID_L = 0000h in the I/O Register Address Space)
Bit
Reset
CPU Access
Note: R = Read Only.
7
6
5
4
3
2
1
0
0
0
0
0
1
0
0
0
R
R
R
R
R
R
R
R
Bit
Position
[7:0]
ZDI_ID_L
Value Description
08h {ZDI_ID_H, ZDI_ID_L} = {00h, 08h} indicates the
eZ80F91 product.
PS019209-0504
PRELIMINARY
ZiLOG Debug Interface