ez80l92 ZiLOG Semiconductor, ez80l92 Datasheet - Page 178

• Manufacturer Part Number: ez80l92
• Description: Ez80acclaim Flash Microcontrollers
• Manufacturer: ZiLOG Semiconductor

PS013014-0107
ZDI Master Control Register
The ZDI Master Control register provides control of the eZ80L92. It is capable of forcing
a RESET and waking up the eZ80L92 from the low-power modes (HALT or SLEEP). See
Table
Table 94. ZDI Master Control Register (ZDI_MASTER_CTL = 11h in ZDI
Register Write Address Spaces)
Bit
Position
1
ign_low_0
0
single_step
Bit
Reset
CPU Access
Note: W = Write-only.
Bit
Position
7
ZDI_RESET
[6:0]
94.
0000000 Reserved.
Value Description
Value
0
1
0
1
0
1
W
7
0
The Ignore the Low Byte function of the ZDI Address Match
1 registers is disabled. If BRK_ADDR0 is set to 1, ZDI
initiates a BREAK when the entire 24-bit address,
ADDR[23:0], matches the 3-byte value {ZDI_ADDR0_U,
ZDI_ADDR0_H, ZDI_ADDR0_L}.
The Ignore the Low Byte function of the ZDI Address Match
1 registers is enabled. If the BRK_ADDR1 is set to 0, ZDI
initiates a BREAK when only the upper 2 bytes of the 24-bit
address, ADDR[23:8], match the 2 bytes value
{ZDI_ADDR0_U, ZDI_ADDR0_H}. As a result, a BREAK
can occur anywhere within a 256-byte page.
ZDI SINGLE STEP mode is disabled.
ZDI SINGLE STEP mode is enabled. ZDI asserts a BREAK
following execution of each instruction.
Description
No action.
Initiate a RESET of the eZ80L92. This bit is
automatically cleared at the end of the RESET event.
W
6
0
W
5
0
W
4
0
W
3
0
Product Specification
W
2
0
ZiLOG Debug Interface
eZ80L92 MCU
W
1
0
W
0
0
172