r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 1865

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

42.2
Table 42.1 shows the pin configuration for the H-UDI.
Table 42.1 Pin Configuration
Notes: 1. This pin is pulled up in this LSI. When using interrupts or resets via the H-UDI or
Pin Name
TCK
TMS
TRST*
TDI
TDO
ASEBRK/
BRKACK
AUDSYNC,
AUDCK,
AUDATA3 to
AUDATA0
MPMD
2
2. When using interrupts or resets via the H-UDI or emulator, the TRST pin should be
Input/Output Pins
emulator, the use of external pull-up resistors will not cause any problem.
designed so that it can be controlled independently and can be controlled to retain low
level while the PRESET pin is asserted at a power-on reset.
Function
Clock
Mode
Reset
Data input
Data output Output
Emulator
Emulator
Chip-mode Input
Input
I/O
Input
Input
Input
I/O
Output
Description
Functions as the serial clock input pin stipulated in
the JTAG standard. Data input to the H-UDI via the
TDI pin or data Output via the TDO pin is performed
in synchronization with this signal.
Mode Select Input
Changing this signal in synchronization with the TCK
signal determines the significance of data input via
the TDI pin. Its protocol conforms to the JTAG
standard (IEEE standard 1149.1).
H-UDI Reset Input
This signal is received asynchronously with a TCK
signal. Asserting this signal resets the JTAG interface
circuit. When a power is supplied, the TRST pin
should be asserted for a given period regardless of
whether or not the JTAG function is used, which
differs from the JTAG standard.
Data Input
Data is sent to the H-UDI by changing this signal in
synchronization with the TCK signal.
Data Output
Data is read from the H-UDI in synchronization with
the TCK signal.
Pins for an emulator
Pins for an emulator
Selects the operation mode of this LSI, whether
emulation support mode (Low level) or LSI operation
mode (High level).
Section 42 User Debugging Interface (H-UDI)
Rev. 1.00 Oct. 01, 2007 Page 1799 of 1956
REJ09B0256-0100
When Not
in Use
Open*
Open*
Fixed to
ground or
connected to
the PRESET
pin*
Open*
Open
Open*
Open
Open
3
1
1
1
1