upd78f0124hgba1-8et-a Renesas Electronics Corporation., upd78f0124hgba1-8et-a Datasheet - Page 412

• Manufacturer Part Number: upd78f0124hgba1-8et-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

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the host machine via an on-chip debug emulator (QB-78K0MINI) for on-chip debugging. Whether X1 and P31, or X2
and P32 are used can be selected.
412
The
Caution The
Note Make pull-down resistor 470 Ω or more.
Cautions 1. Input the clock from the X1 pin during on-chip debugging.
Figure 25-1. Connection Example of QB-78K0MINI and
µ
PD78F0124HD uses the V
2. Control the X1 and X2 pins by externally pulling down the P31 pin.
because its reliability cannot be guaranteed after the on-chip debug function has been used,
given the issue of the number of times the flash memory can be rewritten. NEC Electronics does
not accept complaints concerning this product.
QB-78K0MINI target connector
CHAPTER 25 ON-CHIP DEBUG FUNCTION (
µ
PD78F0124HD has an on-chip debug function. Do not use this product for mass production
RESET_OUT
RESET_IN
FLMD0
GND
V
X1
X2
DD
DD
, FLMD0, RESET, X1 (or P31), X2 (or P32), and V
User’s Manual U16962EJ3V0UD
Target reset
µ
PD78F0124HD (When X1 and X2 Are Used)
µ
PD78F0124HD ONLY)
Note
Note
GND
X2
X1
V
P31
RESET
FLMD0
µ
DD
SS
PD78F0124HD
pins to communicate with