HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 760

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

23. Advanced User Debugger (AUD)
23.5.4
1. Module standby
2. AUDRST = low-level input
3. Normal operation/software standby
23.5.5
Follow the sequence described below to start up the AUD.
After selecting the AUD pin by the PFC, input at least three clocks to the AUDCK pin while
retaining the AUDRST pin at low level. Then, set the AUD reset bit (AUDSRST) in SYSCR to
clear the AUD reset. Low level input to the AUDRST pin and clock input to the AUDCK pin can
be started prior to the selection of the AUD pin by the PFC.
23.5.6
While using the PD22/AUDCK pin for RAM monitor function, the PE3/AUDATA3,
PE4/AUDATA2, PE5/AUDATA1, PE6/AUDATA0, and PA16/AUDSYNC pins are not
available. Instead of those unavailable pins, the PD19/AUDATA3, PD18/AUDATA2,
PD17/AUDATA1, PD16/AUDATA0 and PD23/AUDSYNC pins must be used.
Rev.4.00 Mar. 27, 2008 Page 716 of 882
REJ09B0108-0400
AUDMD
AUDCK
AUDSYNC
AUDATA
AUDMD
AUDCK
AUDSYNC
AUDRST
AUDATA
AUDRST =
AUDMD
AUDCK
AUDSYNC
AUDRST
AUDATA
Pin States
AUD Start-up Sequence
RAM Monitor Operation Using the PD22/AUDCK Pin
Z
Z
Z
Z
Input
(1) AUDMD = high: Input
(1) AUDMD = high: Input
Low-level input
(1) AUDMD = high: Input
1
Input
(1) AUDMD = high: Input
(1) AUDMD = high: Input
High-level input
(1) AUDMD = high: Input/Output (2) AUDMD = low: Output
(2) AUDMD = low: High-level Output
(2) AUDMD = low: High-level Output
(2) AUDMD = low: High-level Output
(2) AUDMD = low: Output
(2) AUDMD = low: Output