1
1-12
Rev.1.0
Table 1.3.1 Description of Pin Functions (1/6)
Classification Pin Name
Description
Type
Function
Power supply
VCCE
Power supply
––
Supplies power to external I/O ports (5 V).
VCCI
Power supply
––
Supplies power to the internal logic (3.3 V).
VDD
RAM power supply ––
Power supply pin for internal RAM backup (3.3 V).
FVCC
Flash power supply ––
Power supply pin for the internal flash memory (3.3 V).
VSS
Ground
––
Connect all VSS to ground (GND).
Clock
XIN,
Clock
Input
Clock input/output pin. With a PLL-based
XOUT
Output
frequency multiplier circuit included, enter a clock with
1/4 the operating frequency (XIN input = 10.0 MHz for
the CPU clock of 40 MHz).
Use this clock for external synchronized design.
______
BCLK/WR
System
Output
When this signal is System Clock (BCLK), it outputs a
clock
clock whose is twice that of extemal inpout clock.
(BCLK output = 20 MHz when CPU clock operates at
40 MHz).
__
When this signal is Write (WR), during extemal write
access it indicates the valid data on the data bus to
transfer.
input clock (BCLK output = 20 MHz when the external
input clock is 10 MHz).
OSC-VCC
Power supply
––
Power supply for the PLL circuit. Connect OSC-VCC to
the power supply (3.3 V).
OSC-VSS
Ground
––
Connect OSC-VSS to ground.
VCNT
PLL control
Input
PLL circuit control pin. Connect a resistor and capacitor
to this pin. (For details about an external circuit, refer to
Section 20.1.1, "Example of an Oscillator Circuit."
Reset
_____
RESET
Reset
Input
Resets the internal circuits.
Mode
MOD0
Mode
Input
Sets operation mode.
MOD1
FP MOD0 MOD1 Mode
X
0
0
Single-chip mode
X
0
1
External extended mode
0
1
0
Processor mode
1
1
0
Boot mode
X
1
1
(Reserved)
Address
A12-A30
Address
Output
To allow four blocks of up to 1 MB memory space to
bus
bus
be connected external to the chip, 19 address lines
(A12-A30) are provided. A31 is not output to the
outside.
Note: For details about boot mode, refer to Chapter 6, "Internal Memory."
Overview
1.3 Pin Functions
Содержание 32172
Страница 20: ... This is a blank page 16 ...
Страница 21: ...1 1 Overview 1 2 Block Diagram 1 3 Pin Functions 1 4 Pin Layout CHAPTER 1 CHAPTER 1 OVERVIEW ...
Страница 44: ...1 1 24 Rev 1 0 This is a blank page Overview 1 4 Pin Layout ...
Страница 58: ...2 2 14 Rev 1 0 This is a blank page CPU 2 6 Data Formats ...
Страница 122: ...4 4 26 Rev 1 0 This is a blank page EIT 4 13 Precautions on EIT ...
Страница 200: ...7 7 6 Rev 1 0 This is a blank page RESET 7 4 Precautions to Be Taken Immediately after Reset ...
Страница 240: ...8 8 40 Rev 1 0 This is a blank page INPUT OUTPUT PORTS AND PIN FUNCTIONS 8 5 Precautions on Input Output Ports ...
Страница 298: ...9 9 58 Rev 1 0 This is a blank page DMAC 9 4 Precautions on Using DMAC ...
Страница 416: ...10 10 118 Rev 1 0 This is a blank page INPUT OUTPUT TIMERS 10 6 TOM Output Related 16 bit Timers ...
Страница 658: ...14 14 16 Rev 1 0 REAL TIME DEBUGGER RTD 14 4 Typical Connection with the Host This is a blank page ...
Страница 718: ...16 16 16 Rev 1 0 This is a blank page D A CONVERTERS 16 3 Functional Description of the D A Converters ...
Страница 766: ...18 18 22 Rev 1 0 WAIT CONTROLLER 18 3 Typical Operation of the Wait Controller This is a blank page ...
Страница 776: ...19 19 10 Rev 1 0 RAM BACKUP MODE 19 4 Exiting RAM Backup Mode Wakeup This is a blank page ...
Страница 777: ...CHAPTER 20 CHAPTER 20 OSCILLATION CIRCUIT 20 1 Oscillator Circuit 20 2 Clock Generator Circuit ...
Страница 782: ...20 20 6 Rev 1 0 OSCILLATION CIRCUIT 20 2 Clock Generator Circuit This is a blank page ...
Страница 856: ...23 23 26 Rev 1 0 This is a blank page ELECTRICAL CHARACTERISTICS 23 6 AC Characteristics ...
Страница 857: ...24 1 A D Conversion Characteristics CHAPTER 24 CHAPTER 24 STANDARD CHARACTERISTICS ...
Страница 859: ...Appendix 1 1 Dimensional Outline Drawing APPENDIX 1 APPENDIX 1 MECHANICAL SPECIFICATIONS ...
Страница 861: ...Appendix 2 1 M32R E Instruction Processing Time APPENDIX 2 APPENDIX 2 INSTRUCTION PROCESSING TIME ...
Страница 865: ...Appendix 3 1 Precautions about Noise APPENDIX 3 APPENDIX 3 PRECAUTIONS ABOUT NOISE ...