ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 35
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ez80f91
Manufacturer Part Number
ez80f91
Description
Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
Manufacturer
ZiLOG Semiconductor
Datasheet
1.EZ80F91.pdf
(387 pages)
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Register Map
Table 3. Register Map
PS027001-0707
Address
(hex)
Product ID
0000
0001
0002
Interrupt Priority
0010
0011
0012
0013
0014
0015
Ethernet Media Access Controller
0020
0021
0022
0023
0024
Mnemonic
ZDI_ID_L
ZDI_ID_H
ZDI_ID_REV
INT_P0
INT_P1
INT_P2
INT_P3
INT_P4
INT_P5
EMAC_TEST
EMAC_CFG1
EMAC_CFG2
EMAC_CFG3
EMAC_CFG4
All on-chip peripheral registers are accessed in the I/O address space. All I/O operations
employ 16-bit addresses. The upper byte of the 24-bit address bus is undefined during all
I/O operations (ADDR[23:16] = XX). All I/O operations using 16-bit addresses within the
0000h–00FFh
not generated if the address space programmed for the I/O chip selects overlap the
0000h–00FFh
Registers at unused addresses within the
erals are not implemented. Read access to such addresses returns unpredictable values and
Write access produces no effect.
device.
range are routed to the on-chip peripherals. External I/O chip selects are
address range.
Name
eZ80 Product ID Low Byte Register
eZ80 Product ID High Byte Register
eZ80 Product ID Revision Register
Interrupt Priority Register—Byte 0
Interrupt Priority Register—Byte 1
Interrupt Priority Register—Byte 2
Interrupt Priority Register—Byte 3
Interrupt Priority Register—Byte 4
Interrupt Priority Register—Byte 5
EMAC Test Register
EMAC Configuration Register
EMAC Configuration Register
EMAC Configuration Register
EMAC Configuration Register
Table 3
0000h–00FFh
describes the register map for the eZ80F91
range assigned to on-chip periph-
Reset
(hex)
XX
08
00
00
00
00
00
00
00
00
00
37
0F
00
Product Specification
Access
eZ80F91 ASSP
CPU
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
Register Map
Page
256
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