Renesas H8/3067 Series User Manual page 670

Section 18 ROM
• Status Read Mode
Status polling is used for auto-programming and auto-erasing, and normal termination can be
confirmed by reading the I/O 6 signal. In status read mode, error information is output if an
error occurs.
Table 18.10 Settings for Each Operating Mode in PROM Mode
Pin Names *
Mode FWE
Read V
Output disable V
Command write V
Chip disable *
1
V
L : Low level
H : High level
X : Undefined
Hi-Z : High impedance
Notes: For command writes when making a transition to auto-program or auto-erase mode, input
Vcc (V) to FWE.
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.
3. The pin names are those assigned in H8/3067RF PROM mode.
Table 18.11 PROM Mode Commands
Command Name
Memory read mode 1
Auto-program mode 129
Auto-erase mode
Status read mode
RA : Read address
WA : Program address
Dout : Read data
Din : Program data
Note: In auto-program mode. 129 cycles are required for command writing by a simultaneous
128-byte write.
Rev. 4.00 Jan 26, 2006 page 646 of 938
REJ09B0276-0400
3
CE CE
CE CE
or 0 L
CC
or 0 L
CC
or 0 L
CC
or 0 H
CC
Number of Cycles Mode
2
2
OE OE WE WE
OE OE WE WE
L H
H H
H L
X X
1st Cycle
Address Data Mode Address
Write X H'00 Read RA
Write X H'40 Write WA
Write X H'20 Write X
Write X H'71 Write X
D to D A to A
0 7 0
Data output Ain
Hi-Z X
Ain *
2
Data input
Hi-Z X
2nd Cycle
Data
Dout
Din
H'20
H'71
17