UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 838

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

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Figure 27-3. Connection Example of QB-78K0MINI or QB-MINI2 and 78K0/Dx2 (When P31 and P32 Are Used)
Notes 1. This connection is designed assuming that the reset signal is output from the N-ch open-drain buffer
Connect the FLMD0 pin as follows when performing self programming by means of on-chip debugging.
Figure 27-4. Connection of FLMD0 Pin for Self Programming by Means of On-Chip Debugging
2. This is the processing of the pin when P32 is set as the input port (to prevent the pin from being left
3. Make pull-down resistor 470
4. Characters without parentheses represent the QB-78K0MINI name, and those within parenthesis the
(output resistance: 100
MINI2 User’s Manual (U18371E).
opened when not connected to QB-78K0MINI or QB-MINI2).
QB-MINI2 name.
QB-78K0MINI target connector
Target connector
(10-pin)
X2 (DATA)
RESET_IN
RESET_OUT
X1 (CLK)
FLMD0
R.F.U.
R.F.U.
GND
GND
Note 4
Note 4
FLMD0
V
Note 1
DD
(Open)
(Open)
CHAPTER 27 ON-CHIP DEBUG FUNCTION
or less). For details, refer to QB-78K0MINI User’s Manual (U17029E) or QB-
V
DD
Preliminary User’s Manual U19748EJ1V0UD
or more (10 k : recommended).
V
DD
(Recommended)
3 to 10 k
(Recommended)
10 k
Note 3
Note 2
V
DD
1 k
(Recommended)
1 k (recommended)
10 k (recommended)
V
DD
Reset circuit
Reset signal
Target device
V
P32
P31
GND
RESET
FLMD0
DD
Target device
Port
FLMD0