ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 266

• Manufacturer Part Number: ez80f91
• Description: Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
• Manufacturer: ZiLOG Semiconductor

Table 147. ZDI Read Register Low, High, and Upper
ZDI_RD_U = 12h in the ZDI Register Read Only Address Space)
PS027001-0707
Bit
Reset
CPU Access
Note: R = Read Only.
Bit
Position
[7:0]
zdi_rd_l,
zdi_rd_h,
or
zdi_rd_u
ZDI Read Register Low, High, and Upper
The ZDI register Read Only address space offers Low, High, and Upper functions, which
contain the value read by a Read operation from the ZDI Read/Write Control register
(ZDI_RW_CTL). This data is valid only while in ZDI BREAK mode and only if the
instruction is read by a request from the ZDI Read/Write Control register. See
Value
00h–FFh Values read from the memory location as requested by the
R
7
0
Description
ZDI Read Control register during a ZDI Read operation.
The 24-bit value is supplied by {ZDI_RD_U, ZDI_RD_H,
ZDI_RD_L}.
R
6
0
R
5
0
R
4
0
R
3
0
(ZDI_RD_L = 10h, ZDI_RD_H = 11h, and
R
2
0
R
1
0
Product Specification
R
0
0
Zilog Debug Interface
eZ80F91 ASSP
Table
147.
258