E8A Datasheet, PDF (6/12 Pages) Renesas Technology Corp – On Board Programming for QzROM

On board programming circuit diagram for E8a(2)
IC Socket QzROM
BBooaarrdd//EE88aa Signal
1
ESCLK
2
VSS,AVSS
3
VPP
4
ESPGMB
5
N.C.
6
VSS,AVSS
7
ESDA
8
E8VCC
9
N.C.
10
VSS,AVSS
11
N.C.
12
VSS,AVSS
13
RESET
14
VSS,AVSS
FLASH
Signal
SCLK
VSS,AVSS
CNVSS
N.C.
N.C.
VSS,AVSS
TXD
VCC
BUSY
VSS,AVSS
RXD
VSS,AVSS
RESET
VSS,AVSS
©2009. Renesas Technology Corp., All rights reserved.
2. 38D5 and 38D2 Group QzROM (OSCSEL = “L”)
FLASH and QzROM except for the 3823 Group
MCU (QzROM/FLASH)
Vcc
E8VCC / Vcc
4.7 kΩ
VPP / CNVSS
(OSCSEL)
4.7 kΩ
N.C. / RXD
4.7 kΩ
*2
14
13
12
11
10
9
8
7
6
4
3
2
1
RESET
circuit
ESDA / TXD
ESCLK / SCLK
ESPGMB / BUSY
*1
RESETB
Vss
AVss
XIN
XOUT
Set the same termination as the
single-chip mode.
*1 : Open-collector buffer
*2 : To write data on the Flash ROM and QzROM using the same IC socket board / user board,
connect Pin No. 4 and No. 9.
Note: For the programming circuit, the wiring capacity of each signal pin must not exceed 47 pF.
Connect the oscillation circuit to external for flash memory version.
Page : 4 Date : Oct.29.09 Rev.4.10 Code : On-board programming with E8a