h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 740
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h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
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Section 20 ROM
Table 20.12 Programmer Mode Commands
Notes: 1. In auto-program mode, 129 cycles are required for command writing by a simultaneous
20.11.3 Memory Read Mode
1. After completion of auto-program/auto-erase/status read operations, a transition is made to the
2. In memory read mode, command writes can be performed in the same way as in the command
3. Once memory read mode has been entered, consecutive reads can be performed.
4. After powering on, memory read mode is entered.
Rev. 5.00 Sep 22, 2005 page 714 of 1136
REJ09B0257-0500
Command Name
Memory read mode
Auto-program mode
Auto-erase mode
Status read mode
command wait state. When reading memory contents, a transition to memory read mode must
first be made with a command write, after which the memory contents are read.
wait state.
2. In memory read mode, the number of cycles depends on the number of address write
128-byte write.
cycles (n).
Number
of Cycles
1 + n
129
2
2
Mode
Write
Write
Write
Write
1st Cycle
Address Data
X
X
X
X
H'00
H'40
H'20
H'71
Mode
Read
Write
Write
Write
2nd Cycle
Address Data
RA
WA
X
X
Dout
Din
H'20
H'71
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