PD77210_15 Datasheet, PDF (23/76 Pages) Renesas Technology Corp – 16-BIT FIXED-POINT DIGITAL SIGNAL PROCESSOR

µPD77210, 77213
1.2 Connection of Unused Pins
1.2.1 Connection of functional pins
Connect the unused pins as shown in the table below.
Pin Name
I/O
Recommended Connection
STOPS, HALTS
Output Leave open.
CSTOP
Input
Connect to GND via a pull-down resistor.
CLKOUT
Output Leave open.
P0 to P15
HD0 to HD7^{Note 1}
I/O
Connect to EVDD via a pull-up resistor or to GND via a pull-down resistor.
I/O
Connect to EVDD via a pull-up resistor or to GND via a pull-down resistor.
HA0, HA1
Input
Connect to EVDD via a pull-up resistor or to GND via a pull-down resistor.
HCS, HRD, HWR
Input
Connect to EVDD via a pull-up resistor.
HRE, HWE
Output Leave open.
TIMOUT
Output Leave open.
ASCK, TSCK
Input
Connect to EVDD via a pull-up resistor or to GND via a pull-down resistor.
ASI, TSI
Input
ASIEN, TSIEN
Input
Connect to GND via a pull-down resistor.
ASOEN, TSOEN,
LRCLK
ASO, TSO
Input
Output Leave open.
TSORQ
Output
TSIAK
Output
MA0 to MA19
MD0 to MD15^{Note 2}
Output
I/O
Leave open.
Connect to EVDD via a pull-up resistor or to GND via a pull-down resistor.
MRD, MWR
Output Leave open.
MHOLDRQ
Input
Connect to EVDD via a pull-up resistor.
MBSTB, MHOLDAK
Output Leave open.
MWAIT
Input
Connect to EVDD via a pull-up resistor.
TCK
Input
Connect to GND via a pull-down resistor.
TDO, TICE
Output Leave open.
TMS, TDI
Input
Leave open (this pin is internally pulled up).
TRST
Input
Leave open (this pin is internally pulled down).
Notes 1. These pins may left opened if the HCS, HRD,and HWR are fixed to the high level.
However, connect these pins as recommended in the HALT and STOP modes when the power
consumption must be lowered.
2. These pins may leave opened if the external data memory is not accessed in the program.
However, connect these pins as recommended in the HALT and STOP modes when the power
consumption must be lowered.
Caution Unused alternate-function pins should be handled in accordance with the processing specified
for the pin function of the initial setting.
Data Sheet U15203EJ3V0DS
21