Z51F0410 Datasheet, PDF (174/184 Pages) Zilog, Inc. – Z8051 Series 8-Bit Microcontrollers

Z51F0410
Product Specification
8.5.3 Parallel Mode timing diagram
nALE
nWR
nRD
PDATA
Write
AL
1- byte read with 3 -byte address
Write
AM
Write
AH
Read
Data Out
T_ARS
T _ARH
1- byte read with 2 -byte address
2- byte read with 1-byte address
Write
AL
Write
AM
Read
Data Out
Write
AL
Read
Data Out
T_AWS
T_AWH
Read
Data Out
address auto- increment
AL(00H) AM(F0H) AH(00H) DO
Read @0F000H
AL(00H) AM(A0H) DO
Read @0A000H
AL(01H)
DO
DO
Read @0A001H
Read @0A002H
nALE
nWR
nRD
PDATA
Figure 8.8 Parallel Byte Read Timing of Program Memory
Write
AL
1- byte write with 3 - byte address
Write
AM
Write
AH
Write
Data
T _AWS
T _AWH
1- byte write with 2 - byte address
Write
AL
Write
AM
Write
Data
2- byte write with 1 - byte address
Write
AL
Read
Data Out
Write
Data
address auto- increment
AL(00H) AM(F0H) AH(00H) DI(00H) AL(00H) AM(A0H) DI(01H) AL(01H) DI(02H) DI(03H)
Write 0x00 @0x0F000
Write 0x01 @0x0A000H
Write 0x02 @0x0A001 Write 0x03 @0x0A002
Figure 8.9 Parallel Byte Write Timing of Program Memory
Pin
Function
P01
PDATA[0]
Table 8-5 Control Pin Description
P02
PDATA[1]
P03
nALE
P04
nWR
P05
nRD
8.6 Mode entrance method of ISP and byte-parallel mode
8.6.1 Mode entrance method for ISP
TARGET MODE
R03
R05
PS029502-0212
PRELIMINARY
R03
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