r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 1682

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Appendix
Notes: Power must be supplied to each power supply pin, even when the function pin is not used.
Rev.1.00 Jan. 10, 2008 Page 1652 of 1658
REJ09B0261-0100
Pin Name (LSI level)
AUDCK
AUDSYNC
AUDATA[3:0]
MPMD
When a pin is not used, do not set the register for the pin.
1. This pin is pulled-up within this LSI after power-on reset. Set the RDYPUP bit in
2. The MODE[12:11] pin settings should be LBSC mode to be open these pins.
3. Specify LBSC mode or DU mode by the MODE[12:11] pins.
4. When not using emulator, the pin should be fixed to ground or connected to another pin
PPUPR1 (GPIO) to 1 to pull-up off the RDY pin's pulled-up.
which operates in the same manner as PRESET. However, when fixed to a ground pin,
the following problem occurs. Since the TRST pin is pulled up within this LSI, a weak
current flows when the pin is externally connected to ground pin. The value of the
current is determined by a resistance of the pull-up MOS for the port pin. Although this
current does not affect the operation of this LSI, it consumes unnecessary power.
Pin Name
(Module level)
AUDCK
AUDSYNC
AUDATA[3:0]
MPMD
Module
H-UDI
H-UDI
H-UDI
H-UDI
I/O
O
O
O
I
When Not in Use
Open
Open
Open
Pulled-up to VDDQ