HD64F2357VF13 Datasheet, PDF (680/1049 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

19.22.3 Programmer Mode Operation
Table 19-40 shows how the different operating modes are set when using programmer mode, and table 19-41 lists the
commands used in programmer mode. Details of each mode are given below.
Memory Read Mode: Memory read mode supports byte reads.
Auto-Program Mode: Auto-program mode supports programming of 128 bytes at a time. Status polling is used to
confirm the end of auto-programming.
Auto-Erase Mode: Auto-erase mode supports automatic erasing of the entire flash memory. Status polling is used to
confirm the end of auto-erasing.
Status Read Mode: Status polling is used for auto-programming and auto-erasing, and normal termination can be
confirmed by reading the I/O₆ signal. In status read mode, error information is output if an error occurs.
Table 19-40 Settings for Each Operating Mode in Programmer Mode
Pin Names
Mode
Read
CE
OE
WE
I/O₇ to I/O₀
L
L
H
Data output
Output disable
L
H
H
Hi-Z
Command write
L
H
L
Data input
Chip disable*¹
H
×
×
Hi-Z
Legend:
H: High level
L: Low level
Hi-Z: High impedance
×:
Don’t care
Notes: 1. Chip disable is not a standby state; internally, it is an operation state.
2. Ain indicates that there is also address input in auto-program mode.
A₁₈ to A₀
Ain
×
Ain*²
×
Table 19-41 Programmer Mode Commands
Command Name
Number
of Cycles Mode
1st Cycle
Address Data
2nd Cycle
Mode Address Data
Memory read mode 1 + n
Write ×
H'00
Read RA
Dout
Auto-program mode 129
Write ×
H'40
Write PA
Din
Auto-erase mode
2
Write ×
H'20
Write ×
H'20
Status read mode 2
Write ×
H'71
Write ×
H'71
Legend:
RA: Read address
PA: Program address
×:
Don't care
Notes: 1. In auto-program mode, 129 cycles are required for command writing by a simultaneous 128-byte write.
2. In memory read mode, the number of cycles depends on the number of address write cycles (n).
Rev.6.00 Oct.28.2004 page 650 of 1016
REJ09B0138-0600H