r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 694

• Manufacturer Part Number: r5f21346mnfp
• Description: Single-chip Mcus Incorporates The R8c Cpu Core
• Manufacturer: Renesas Electronics Corporation.

R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
Figure 32.18
Table 32.7
I: Input
VCC, VSS
RESET
P4_6/XIN
P4_7/XOUT
P4_3/XCIN
P4_4/XCOUT
P0_0 to P0_7
P1_0 to P1_3,
P1_6, P1_7
P2_0 to P2_7
P3_0 and P3_1,
P3_3 to P3_5, P3_7
P4_2/VREF, P4_5
MODE
P1_4
P1_5
Notes:
Pin
Data output
Data input
1. In this example, modes are switched between single-chip mode and standard serial I/O mode by
2. When operating with the on-chip oscillator clock, it is not necessary to connect an oscillation
O: Output
Refer to Appendix Figure 2.1 Connection Example with MF Ten Nine Cable (M3A-0652CBL).
controlling the MODE input with a switch.
circuit.
Pin Handling in Standard Serial I/O Mode 2
Pin Functions (Flash Memory Standard Serial I/O Mode 2)
User reset signal
Power supply input
Reset input
P4_6 input/clock input
P4_7 input/clock output I/O
P4_3 input/clock input
P4_4 input/clock output I/O
Input port P0
Input port P1
Input port P2
Input port P3
Input port P4
MODE
TXD output
RXD input
I/O: Input and output
Name
TXD
RXD
RESET
Connect an oscillator
I/O
I/O Input a “L” level signal.
O Serial data output pin
I
I
I
I
I
I
I
I
I
XIN
Apply the guaranteed programming and erasure
voltage to the VCC pin and 0 V to the VSS pin.
Reset input pin
Connect a ceramic resonator or crystal oscillator
between pins XIN and XOUT.
Connect a crystal oscillator between pins XCIN and
XCOUT.
Input a “H” or “L” level signal or leave open.
Input a “H” or “L” level signal or leave open.
Input a “H” or “L” level signal or leave open.
Input a “H” or “L” level signal or leave open.
Input a “H” or “L” level signal or leave open.
Serial data input pin
MCU
XOUT
MODE
AVSS
AVCC
VSS
VCC
(2)
Description
32. Flash Memory
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