Recommended Circuit Between The H-Udi Port Connector And The Mcu; Recommended Circuit (36-Pin Type) - Renesas E200F User Manual

2.6 Recommended Circuit between the H-UDI Port Connector and the
MCU
2.6.1

Recommended Circuit (36-Pin Type)

Figures 2.12 and 2.13 show recommended circuits for connection between the H-UDI and AUD
port connectors (36 pins) and the MCU when the emulator is in use.
Notes: 1. Do not connect anything to the N.C. pins of the H-UDI port connector.
2. The ASEMD0# pin must be 0 when the emulator is connected and 1 when the emulator
is not connected, respectively.
(1) When the emulator is used: ASEMD0# = 0
(2) When the emulator is not used: ASEMD0# = 1
Figures 2.12 and 2.13 show examples of circuits that allow the ASEMD0# pin to be
GND (0) whenever the emulator is connected by using the H-UDI/AUD probe. When
the ASEMD0# pin is changed by switches, etc., ground pin 22. Do not connect this pin
to the ASEMD0# pin.
3. When a network resistance is used for pull-up, it may be affected by a noise. Separate
TCK from other resistances.
4. The pattern between the H-UDI port connector and the MCU must be as short as
possible. Do not connect the signal lines to other components on the board.
5. The AUD signals (AUDCK, AUDATA3 to AUDATA0, and _AUDSYNC) operate in
high speed. Isometric connection is needed if possible. Do not separate connection nor
connect other signal lines adjacently.
6. Supply the operating voltages of the H-UDI and AUD of the MCU to the UVCC pin.
7. The resistance values shown in figures 2.12 and 2.13 are for reference.
8. For the AUDCK pin, guard the pattern between the H-UDI port connector and the
MCU at GND level.
9. For the pin processing in cases where the emulator is not used, refer to the hardware
manual of the related MCU.
Section 2 Connecting the Emulator to the User System
Rev. 4.00 Feb. 18, 2009 Page 21 of 64
REJ10J1662-0400