參數(shù)資料
型號(hào)： R5F363A6DFB
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁數(shù)： 26/115頁
文件大小： 2363K
代理商： R5F363A6DFB
REJ03B0271-0100 Rev.1.00 Sep 15, 2009
Page 18 of 113
M16C/63 Group
1. Overview
1.6
Pin Functions
Power supply: VCC2 is used to supply power to the external bus associated pins. The dual power supply configuration
allows VCC2 to interface at a different voltage than VCC1.
Table 1.10
Pin Functions for the 100-Pin Package (1/3)
Signal Name
Pin Name
I/O
Power Supply
Description
Power supply
input
VCC1,
VCC2, VSS
I-
Apply 1.8 to 5.5 V to pins VCC1 and VCC2 (VCC1
≥ VCC2)
and 0 V to the VSS pin.
Analog power
supply input
AVCC, AVSS
I
VCC1
This is the power supply for the A/D and D/A converters.
Connect the AVCC pin to VCC1, and connect the AVSS pin
to VSS.
Reset input
RESET
I
VCC1
Driving this pin low resets the MCU.
CNVSS
I
VCC1
Input pin to switch processor modes. After a reset, to start
operating in single-chip mode, connect the CNVSS pin to
VSS via a resistor. To start operating in microprocessor
mode, connect the pin to VCC1.
External data bus
width select input
BYTE
I
VCC1
Input pin to select the data bus of the external area. The data
bus is 16 bits when it is low, and 8 bits when it is high. This
pin must be fixed either high or low. Connect the BYTE pin to
VSS in single-chip mode.
Bus control pins
D0 to D7
I/O
VCC2
Inputs or outputs data (D0 to D7) while accessing an
external area with a separate bus.
D8 to D15
I/O
VCC2
Inputs or outputs data (D8 to D15) while accessing an
external area with a 16-bit separate bus.
A0 to A19
O
VCC2
Outputs address bits A0 to A19.
A0/D0 to
A7/D7
I/O
VCC2
Inputs or outputs data (D0 to D7) and outputs address bits
(A0 to A7) by timesharing, while accessing an external area
with an 8-bit multiplexed bus.
A1/D0 to
A8/D7
I/O
VCC2
Inputs or outputs data (D0 to D7) and outputs address bits
(A1 to A8) by timesharing, while accessing an external area
with a 16-bit multiplexed bus.
CS0 to CS3
O
VCC2
Outputs chip-select signals
CS0 to CS3 to specify an
external area.
WRL/WR
WRH/BHE
RD
O
VCC2
Outputs
WRL, WRH, (WR, BHE), and RD signals. WRL and
WRH can be switched with BHE and WR.
WRL, WRH, and RD selected
If the external data bus is 16 bits, data is written to an even
address in an external area when
WRL is driven low. Data
is written to an odd address when
WRH is driven low. Data
is read when
RD is driven low.
WR, BHE, and RD selected
Data is written to an external area when
WR is driven low.
Data in an external area is read when
RD is driven low. An
odd address is accessed when
BHE is driven low. Select
WR, BHE, and RD when using an 8-bit external data bus.
ALE
O
VCC2
Outputs ALE signal to latch address.
HOLD
I
VCC2
The MCU is placed in a hold state while the
HOLD pin is
driven low.
HLDA
O
VCC2
In a hold state,
HLDA outputs a low-level signal.
RDY
I
VCC2
The MCU bus is placed in a wait state while the
RDY pin is
driven low.
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