ez80f92 ZiLOG Semiconductor, ez80f92 Datasheet - Page 32

• Manufacturer Part Number: ez80f92
• Description: Ez80acclaim Flash Microcontrollers
• Manufacturer: ZiLOG Semiconductor

Register Map
Table 3. Register Map
PS015313-0508
Address
(hex)
Programmable Reload Counter/Timers
0080
0081
0082
0083
0084
0085
0086
0087
0088
0089
Mnemonic
TMR0_CTL
TMR0_DR_L
TMR0_RR_L
TMR0_DR_H
TMR0_RR_H
TMR1_CTL
TMR1_DR_L
TMR1_RR_L
TMR1_DR_H
TMR1_RR_H
TMR2_CTL
TMR2_DR_L
TMR2_RR_L
TMR2_DR_H
TMR2_RR_H
TMR3_CTL
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] =
range
not generated if the address space programmed for the I/O Chip Selects overlaps the
0080h
Registers at unused addresses within the
erals are not implemented. Read access to such addresses returns unpredictable values and
Write access produces no effect.
0080h
–
00FFh
–
00FFh
address range.
Name
Timer 0 Control Register
Timer 0 Data Register—Low Byte
Timer 0 Reload Register—Low Byte
Timer 0 Data Register—High Byte
Timer 0 Reload Register—High Byte
Timer 1 Control Register
Timer 1 Data Register—Low Byte
Timer 1 Reload Register—Low Byte
Timer 1 Data Register—High Byte
Timer 1 Reload Register—High Byte
Timer 2 Control Register
Timer 2 Data Register—Low Byte
Timer 2 Reload Register—Low Byte
Timer 2 Data Register—High Byte
Timer 2 Reload Register—High Byte
Timer 3 Control Register
are routed to the on-chip peripherals. External I/O Chip Selects are
UU
Table 3
). All I/O operations using 16-bit addresses within the
0080h
lists the register map for the eZ80F92 device.
–
00FFh
range assigned to on-chip periph-
Reset
(hex)
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
Product Specification
00
eZ80F92/eZ80F93
Access
CPU
R/W
R/W
R/W
R/W
W
W
W
W
W
W
R
R
R
R
R
R
Register Map
Page
No
82
83
84
84
85
82
83
84
84
85
82
83
84
84
85
82
25