UPD78F8056 Renesas Electronics Corporation., UPD78F8056 Datasheet - Page 8

• Manufacturer Part Number: UPD78F8056
• Description: 16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

6. CONNECTION BETWEEN MCU AND RF TRANSCEIVER
6
(1) Internal Connection
(2) Connection externally on the PCB by users
Note These are mandatory connection for recommendation library of our company.
SCLK_RF
SO_RF
SI_RF
SEN_RF
GPIO2
GPIO3
RESET_RF
WAKE_RF
INT_RF
CLK_OUT
RF transceiver
RF transceiver
The RESET_RF connect to V
Name
Name
P130
P144
P31/TI03/
TO03/INTP4
P122/X2/
EXCLK
P10/SCK00
P11/SI00
P12/SO00
P17
P15/RTCDIV/
RTCCL
P16/TI01/
TO01/INTP5
MCU
MCU
Preliminary Product Information U19858EJ1V0PM
DD
RESET input signal for transceiver
High level: disable
Low level: enable
Wakeup request signal for transceiver
The active level can be specified by
software setting at RF transceiver.
Interrupt output signal
The active level can be specified by
software setting at RF transceiver.
Clock out at 32/16/8/4/2/1 MHz.
Use system clock MCU.
XTAL_P and XTAL_N of RF transceiver is
main clock at 32 MHz.
Clock signal of SPI interface
Output signal of SPI interface
Input signal of SPI Interface
Enable signal of SPI interface
High level: disable
Low level: enable
Case of using P15/RTCDIV/ RTCCL, set
Case of using GPIO2, set input mode to
Case of using P16/TI01/TO01/INTP5, set
Case of using GPIO3, set input mode to
P16/TI01/TO01/INTP5.
input mode to GPIO2.
P15/RTCDIV/RTCCL.
input mode to GPIO3.
via a resistor of about 10 K ohm.
Function(RF transceiver)
Function(RF transceiver)
μPD78F8056, 78F8057, 78F8058
MCU→
RF transceiver
RF transceiver→
MCU
MCU→
RF transceiver
MCU→
RF transceiver
MCU→
RF transceiver
MCU→
RF transceiver
RF transceiver→
MCU
RF transceiver→
MCU
Direction
Direction
−
−