EZ80F91MCU ZILOG [Zilog, Inc.], EZ80F91MCU Datasheet - Page 317

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

PS019209-0504
Bit
Position
4
BRK_ADDR1
3
BRK_ADDR0
2
IGN_LOW_1
1
IGN_LOW_0
0
SINGLE_STEP
Value Description
0
1
0
1
0
1
0
1
0
1
P R E L I M I N A R Y
The ZDI break, upon matching break address 1, is
disabled.
The ZDI break, upon matching break address 1, is
enabled.
The ZDI break, upon matching break address 0, is
disabled.
The ZDI break, upon matching break address 0, is
enabled.
The Ignore the Low Byte function of the ZDI Address
Match 1 registers is disabled. If BRK_ADDR1 is set to 1,
ZDI initiates a break when the entire 24-bit address,
ADDR[23:0], matches the 3-byte value {ZDI_ADDR1_U,
ZDI_ADDR1_H, ZDI_ADDR1_L}.
The Ignore the Low Byte function of the ZDI Address
Match 1 registers is enabled. If BRK_ADDR1 is set to 1,
ZDI initiates a break when only the upper 2 bytes of the
24-bit address, ADDR[23:8], match the 2-byte value
{ZDI_ADDR1_U, ZDI_ADDR1_H}. As a result, a break
can occur anywhere within a 256-byte page.
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.
Product Specification
ZiLOG Debug Interface
eZ80F91 MCU
298