M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 92

• 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 68 of 587
8.2.3
Table 8.4
NOTE:
Table 8.5
Data Bus Width
16 bits
8 bits
Data Bus Width
16 bits
8 bits
1. These become WR output.
When using a 16-bit data bus, the PM02 bit in the PM0 register selects either a combination of the “RD, WR,
and BHE” outputs or the “RD, WRL, and WRH” outputs to determine the read/write output signals. When bits
DS3 to DS0 in the DS register are set to 0 (8-bit external data bus width), set the PM02 bit to 0 (RD/WR/BHE).
When any of bits DS3 to DS0 is set to 1 (16-bit external data bus width) to access an 8-bit space, the
combination of “RD, WR, and BHE” is automatically selected regardless of the PM02 bit setting. Table 8.4 lists
RD, WRL, and WRH outputs. Table 8.5 list RD, WR, and BHE outputs.
The RD, WR, and BHE outputs are selected for the read/write output signals after reset. When changing to
“RD, WRL, and WRH” outputs, set the PM02 bit first to write data to an external memory.
Read/Write Output Signals
RD, WRL, and WRH Outputs
RD, WR, and BHE Outputs
RD
RD
H
H
H
H
H
H
H
H
L
L
L
L
L
L
WRL
H
WR
L
H
H
H
H
H
H
L
L
L
L
L
L
(1)
(1)
Not used
Not used
Not used
Not used
WRH
BHE
H
H
H
H
L
L
L
L
L
L
Not used
Not used
Not used
Not used
H/L
H/L
H/L
H/L
A0
A0
H
H
L
L
L
L
Read data
Write 1-byte data to even address
Write 1-byte data to odd address
Write data to both even and odd addresses
Write 1-byte data
Read 1-byte data
Write 1-byte data to odd address
Read 1-byte data from odd address
Write 1-byte data to even address
Read 1-byte data from even address
Write data to both even and odd addresses
Read data from both even and odd addresses
Write 1-byte data
Read 1-byte data
CPU Processing on External Space
CPU Processing on External Space
8. Bus