M30624FGAFP#U3 Renesas Electronics America, M30624FGAFP#U3 Datasheet - Page 500

• Manufacturer Part Number: M30624FGAFP#U3
• Description: IC M16C MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/60r

Specifications of M30624FGAFP#U3

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 20K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• For Use With: 867-1000 - KIT QUICK START RENESAS 62PM3062PT3-CPE-3 - EMULATOR COMPACT M16C/62P/30P
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Programmable I/O Ports
2.16 Programmable I/O Ports Usage
2.16.1 Overview of the programmable I/O ports usage
Eighty-seven programmable I/O ports and one input-only port are available. I/O pins also serve as I/O
pins for built-in peripheral functions.
Each port has a direction register that defines the I/O direction and also has a port register for I/O data. In
addition, each port has a pull-up control register that defines pull-up in terms of 4 bits. The input-only port
has neither direction register nor pull-up control bit.
The following is an overview of the programmable I/O ports usage:
(1) Writing to a port register
(2) Reading a port register
(3) Effect of the protection register
(4) Input-only port
(5) Setting pull-up
With the direction register set to output, the level of the written values from each relevant pin is output
by writing to a port register. The output level conforms to CMOS output. Port P7
channel open drain. Writing to the port register, with the direction register set to input, inputs a value
to the port register, but nothing is output to the relevant pins. The output level remains floating.
In memory expansion and microprocessor mode, the contents of corresponding port and direction
registers of pins A0 to A19, D0 to D15, CS0 to CS3, RD, WRL/WR, WRH/BHE, ALE, RDY, HOLD,
HLDA and BCLK cannot be modified.
With the direction register set to output, reading a port register takes out the content of the port regis-
ter, not the content of the pin. With the direction register set to input, reading the port register takes out
the content of the pin.
Data written to the direction register of P9 is affected by the protection register. The direction register
of P9 cannot be easily rewritten.
P8
be set to this port. As NMI cannot be disabled, an NMI interrupt occurs if a falling edge is input to P8
Use P8
The pull-up control bit allows setting of the pull-up, in terms of 4 bits, either in use or not in use. For the
four bits chosen, pull-up is effective only in the ports whose direction register is set to input. Pull-up is
not effective in ports whose direction register is set to output.
Do not set pull-up of corresponding pin when X
Pull-up can be set for P0 to P3, P4
to P3, P4
be changed, but the pull-up resistance is not connected.
_________
5
is used as the input-only port, it also serves as NMI. P8
5
for reading the level input at this time only.
0
to P4
3
, P5 in memory expansion and microprocessor modes. The contents of register can
_______
0
to P4
_______
3
, P5 in only single-chip mode. Pull-up cannot be set for P0
CIN
_______
_______
/X
_______
COUT
_____
is set or a port is used as A-D input.
________ ______
5
has no direction register. Pull-up cannot
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
________ _______
M16C / 62A Group
Mitsubishi microcomputers
0
and P7
_______
1
__________
are N
2-181
5
.