h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 853

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

9. Before programming, check that the chip is correctly mounted in the PROM
10. Do not touch the socket adapter or chip during programming.
φ
V
FWE
MD2 to MD0
RES
SWE bit
Notes: 1. Except when switching modes, the level of the mode pins (MD2–MD0) must be fixed until power-
CC
programmer.
Overcurrent damage to the device can result if the index marks on the PROM programmer
socket, socket adapter, and chip are not correctly aligned.
Touching either of these can cause contact faults and write errors.
Period during which flash memory access is prohibited
(x: Wait time after setting SWE bit)
Period during which flash memory can be programmed
(Execution of program in flash memory prohibited, and data reads other than verify operations
prohibited)
2. See section 24.1.7, Flash Memory Characteristics.
3. Mode programming setup time t
off by pulling the pins up or down.
*1
Figure 21A-26 Power-On/Off Timing (Boot Mode)
t
OSC1
t
MDS
SWE set
*2
t
*3
MDS
MDS
Wait time:
*3
(min.) = 200 ns
x
Program-
ming/
erasing
possible
Rev. 6.00 Feb 22, 2005 page 793 of 1484
Section 21A ROM (H8S/2636 Group)
Wait time:
100 µs
Min. 0 µs
SWE cleared
Min. 0 µs
REJ09B0103-0600