M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 485

• Manufacturer Part Number: M3087BFLBGP#U5
• Description: IC M32C/87 MCU FLASH 144LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M3087BFLBGP#U5

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: EBI/EMI, I²C, IEBus, IrDA, SIO, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 121
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 34x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 144-LQFP
• For Use With: R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M32C/87 Group (M32C/87, M32C/87A, M32C/87B)
REJ09B0180-0151 Rev.1.51 Jul 31, 2008
Page 461 of 587
25. Programmable I/O Ports
123 programmable I/O ports, P0 to P15 (excluding P8_5), are available in the 144-pin package. 87 programmable I/O
ports, P0 to P10 (excluding P8_5), are available in the 100-pin package. The Port Pi Direction Registers determine
individual port status, input or output. The pull-up control registers determine whether the ports, divided into groups of
four, are pulled up or not. P8_5 is an input-only port and cannot be pulled up internally. The P8_5 bit in the P8 register
indicates an NMI input level since P8_5 shares its pin with NMI.
Figures 25.1 to 25.4 show programmable I/O port configurations.
Each pin functions as a programmable I/O port, I/O pin for internal peripheral function, or bus control pin.
To use as an I/O pin for peripheral function, refer to the description for individual peripheral functions. Refer to 8. Bus
when used as a bus control pin.
Registers associated with the programmable I/O ports are as follows.
25.1
25.2
25.3
25.4
25.5
Figure 25.5 shows the PDi register.
The PDi register configures a programmable I/O port as either input or output. Each bit in the PDi register
corresponds to one port.
In memory expansion mode and microprocessor mode, the PDi register corresponding to the following bus control
pins cannot be written: A0 to A22, A23, D0 to D15, CS0 to CS3, WRL / WR, WRH / BHE, RD, BCLK / ALE /
CLKOUT, HLDA / ALE, HOLD, ALE, and RDY. No bit controlling P8_5 is provided in the PDi register.
Figure 25.6 shows the Pi register.
The MCU inputs/outputs data from/to external devices by reading and writing to the Pi register. The Pi register
consists of a port latch to hold output data and a circuit to read the pin level. Each bit in the Pi register corresponds
to one port.
In memory expansion mode and microprocessor mode, the Pi register corresponding to the following bus control
pins cannot be written and the port level cannot be read from the Pi register: A0 to A22, A23, D0 to D15, CS0 to
CS3, WRL/ WR, WRH / BHE, RD, BCLK / ALE / CLKOUT, HLDA / ALE, HOLD, ALE, and RDY.
Figures 25.7 to 25.11 show the PSj registers.
The PSj register selects either I/O port or peripheral function output if these functions share a single pin (excluding
DA0 and DA1).
When multiple peripheral function outputs are assigned to a single pin, set registers PSL0 to PSL3, PSL5 to PSL7,
PSL9, PSC, PSC2, PSC3, PSC6, PSD1, PSD2, PSE1, and PSE2 to select which function to use.
Tables 25.3 to 25.13 list peripheral function output control settings for each pin.
Figures 25.12 to 25.15 show the PSLk register.
When multiple peripheral function outputs are assigned to a single pin, the PSLk register selects which peripheral
function output to use.
Refer to 25.11 Analog Input and Other Peripheral Function Input for information on bits PSL3_3 to PSL3_6 in
the PSL3 register.
Figures 25.16 and 25.17 show registers PSC, PSC2, PSC3, and PSC6.
When multiple peripheral function outputs are assigned to a single pin, registers PSC, PSC2, PSC3, and PSC6
select which peripheral function output to use.
Refer to 25.11 Analog Input and Other Peripheral Function Input for information on the PSC_7 bit in the PSC
register.
Port Pi Direction Register (PDi Register, i = 0 to 15)
Port Pi Register (Pi Register, i = 0 to 15)
Function Select Register A (PSj Register, j = 0 to 9)
Function Select Register B (PSLk Register, k = 0 to 3, 5 to 7, 9)
Function Select Register C (PSC, PSC2, PSC3, and PSC6 Registers)
25. Programmable I/O Ports