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3850 Group (Spec. H) User’s Manual
APPLICATION
2-105
2.11 Flash memory mode
2.11.4 Parallel I/O mode
In the parallel I/O mode, program/erase to the built-in flash memory can be performed by a EPROM
programmer (EFP-I).
The memory area of program/erase is from 0F00016 to 0FFFF16 (boot ROM area) or from 0800016 to
0FFFF16 (user ROM area). Be especially careful when erasing; if the memory area is not set correctly, the
products will be damaged eternally.
Table 2.11.1 shows the setting of programmers when programming in the parallel I/O mode.
EFP-I provided by Suisei Electronics System Co., Ltd. (http://www.suisei.co.jp/index_e.htm)
(product available in Asia and Oceania only)
Table 2.11.1 Setting of programmers when parallel programming
Products
M38507F8FP
M38507F8SP
Parallel unit
EF3850F-42E
EF3850F-42S
Boot ROM area
0F00016 to 0FFFF16
User ROM area
0800016 to 0FFFF16
2.11.5 Standard serial I/O mode
Table 2.11.2 shows a pin connection example (4 wires) between the programmer (EFP-I; Serial unit
EF1SRP-01U is required additionally) and the microcomputer when programming in the serial I/O mode.
EFP-I provided by Suisei Electronics System Co., Ltd. (http://www.suisei.co.jp/index_e.htm)
(product available in Asia and Oceania only)
Table 2.11.2 Connection example to programmer when serial programming (4 wires)
Pin name
P26/SCLK1
P25/TxD
P24/RxD
P27/CNTR0/SRDY1
CNVSS
RESET (Note 1)
VCC (Note 2)
VSS, AVSS (Note 3)
Pin number
10
11
12
9
15
18
1
21, 3
3850 Group flash memory version
Notes 1: Since reset release after write verification is not performed, when operating MCU after writing,
separate a target connection cable.
2: Supply Vcc of EFP-I side from user side so that the power supply voltage of the output buffer used
by the EFP-I side becomes the same as user side power supply voltage (Vcc).
3: Four pins (No. 1, 2, 15, and 16) of the EF1SRP-01U side connector are prepared for GND signal.
When connecting with a target board, although connection of only one pin does not have a
problem, we recommend connecting with two or more pins.
Function
Transfer clock input
Serial data input
Serial data output
Transmit/Receive enable output
5 V input
Reset input
Target board power source monitor input
GND
EFP-I (EF1SRP-01U)
Signal name
T_SCLK1
T_RXD
T_TXD
T_BUSY
T_VPP
T_RESET
T_VDD (Note 2)
GND (Note 3)
EF1RP-01U side
connector Line number
9
11
10
12
3
14
4
1, 2, 15, 16