Hardware; Usb Connector; Clock Socket For Target Device - Renesas QB-78K0KX1H-DA User Manual

3.1 Hardware

3.1.1 USB connector

A USB2.0 compliant MINI-B type connector (UX60A-MB-5ST: Hirose Electric Co., Ltd.) is used.

3.1.2 Clock socket for target device

For clock supply to the target device, a 14-pin DIP socket is implemented as CLK1. A 14-pin type oscillator (5 V)
or a parts board that can configure an oscillation circuit can be mounted on the 14-pin DIP socket. The socket
specifications are listed as (a) to (d) below. Also, a parts board mounted as CLK1 is shown in (e) below.
A parts board such as the 160-90-314 (manufactured by PRECI-DIP) can be used with this socket to configure
oscillation circuit. Be sure to use the manufacturer's recommended values for constants of the capacitors and
resistors to be mounted.
Caution Be sure to turn off the QB-78K0MINI's power supply before mounting or removing a clock in the
clock socket for the target device. In addition, do not mount a clock in the clock socket when
"System" is selected in the "Main Clock" field in the Configuration dialog box of the debugger.
(a) Equivalent circuit
1 MΩ
HCU04 HCU04
5
Rx
10
11
4
3 13
CB
CA
12 2
(c) Parts board (oscillation circuit parts) mount example
1
2
3
4
5
6
7
Top View
18
CHAPTER 3 HARDWARE SETTINGS AND FUNCTIONS
CLOCK OUT
9 8
14
13
12
11
10
9
8
User's Manual U17029EJ3V0UM
(b) Mounted parts
Pin No.
2 to 13 Capacitor CB
3 to 12 Capacitor CA
4 to 11 Ceramic resonator/crystal resonator
5 to 10 Resistor R
8, 9 Shorted
(d) Pin positions in corresponding clock module
NC 1
GND 7
Top View
Connection
X
V
14
CC
8 CLOCK OUT