ez80190 ZiLOG Semiconductor, ez80190 Datasheet - Page 167

• Manufacturer Part Number: ez80190
• Description: Ez80190 Microprocessor
• Manufacturer: ZiLOG Semiconductor

PS006613-0306
ZDI Address
00h
01h
02h
04h
05h
06h
08h
09h
0Ah
0Ch
0Dh
0Eh
10h
13h
14h
15h
16h
ZDI Write Only Registers
example, the Watch-Dog Timer and Programmable Reload Timers continue to
count during a ZDI breakpoint.
When using the ZDI interface, any write or read operations of peripheral registers
in the I/O address space produces the same effect as read or write operations
using the CPU. Because many register Read/Write operations exhibit secondary
effects, such as clearing flags or causing operations to commence, the effects of
the Read/Write operations during a ZDI break must be taken into consideration.
As an example, reading or writing the MACC Accumulator Byte 4 register can
cause a bank switch to occur within the MACC.
Table 81
are shared with ZDI Read Only registers.
ZDI Register Name
ZDI_ADDR0_L
ZDI_ADDR0_H
ZDI_ADDR0_U
ZDI_ADDR1_L
ZDI_ADDR1_H
ZDI_ADDR1_U
ZDI_ADDR2_L
ZDI_ADDR2_H
ZDI_ADDR2_U
ZDI_ADDR3_L
ZDI_ADDR3_H
ZDI_ADDR3_U
ZDI_BRK_CTL
ZDI_WR_DATA_L
ZDI_WR_DATA_H
ZDI_WR_DATA_U
ZDI_RW_CTL
lists the ZDI Write Only registers. Many of the ZDI Write Only addresses
Table 81. ZDI Write Only Registers
PRELIMINARY
ZDI Register Function
Address Match 0 Low Byte
Address Match 0 High Byte
Address Match 0 Upper Byte
Address Match 1 Low Byte
Address Match 1 High Byte
Address Match 1 Upper Byte
Address Match 2 Low Byte
Address Match 2 High Byte
Address Match 2 Upper Byte
Address Match 3 Low Byte
Address Match 3 High Byte
Address Match 4 Upper Byte
Break Control register
Write Data Low Byte
Write Data High Byte
Write Data Upper Byte
Read/Write Control register
eZ80190 Product Specification
ZiLOG Debug Interface
Reset
Value
XXh
XXh
XXh
XXh
XXh
XXh
XXh
XXh
XXh
XXh
XXh
XXh
XXh
XXh
XXh
00h
00h
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