gc80c520a CORERIVER Semiconductor, gc80c520a Datasheet - Page 25
gc80c520a
Manufacturer Part Number
gc80c520a
Description
Midas1.0 Family Mask Rom/eprom/romless 8-bit Turbo Microcontrollers
Manufacturer
CORERIVER Semiconductor
Datasheet
1.GC80C520A.pdf
(187 pages)
- Current page: 25 of 187
- Download datasheet (2Mb)
In the MOVX @DPTR type, the full 16-bit address is supplied by the Data Pointers.
PORT0
PORT2
XTAL1
PORT0
PORT2
XTAL1
PSEN
PSEN
ALE
RD
MiDAS1.0 Family
ALE
WR
IR
IR
INST0
ADDH_0
INST0
ADDH_0
INST1
INST1
ADDL_1
ADDL_1
INST1
INST1
ADDH_1
Figure 6-3 Write Timing of MOVX instruction
ADDH_1
Figure 6-4 Read Timing of MOVX instruction
MOVX
MOVX
1st Machine Cycle 2nd Machine Cycle 3rd Machine Cycle
S1
1st Machine Cycle 2nd Machine Cycle 3rd Machine Cycle
S1
ADDL_2
ADDL_2
S2
S2
ADDH_2
ADDH_2
S3
S3
Page 25 of 187
INST2
INST2
S4
S4
MOVX Read Instruction
MOVX Write Instruction
S1
S1
XRAM_L
XRAM_L
S2
MOVX address
S2
MOVX address
S3
S3
S4
S4
XRAM_H
XRAM_H
MOVX Read Data
MOVX Write Data
MOVX read data
MOVX write data
S1
S1
S2
S2
S3
S3
S4
S4
ADDL_3
ADDL_3
INST2
INST2
ADDH_3
ADDH_3
INST3
INST3
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