M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 87

• 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 63 of 587
8.
In memory expansion mode or microprocessor mode, the following pins become bus control pins: D0 to D15, A0 to
A22, A23, CS0 to CS3, WRL/WR, WRH/BHE, RD, CLKOUT/BCLK/ALE, HLDA/ALE, HOLD, ALE, and RDY.
8.1
Figure 8.1
Table 8.1
Selecting external data bus width
Setting bus width after reset
Selecting separate bus or multiplexed bus
Number of chip-select pins
Bus setting is determined by the BYTE pin, the DS register, bits PM05 and PM04 in the PM0 register, and bits
PM11 and PM10 in the PM1 register.
Table 8.1 lists bus settings. Figure 8.1 shows the DS register.
External Data Bus Width Control Register
Bus
b7 b6 b5 b4
Bus Settings
b3
b2
Bus Settings
DS Register
Bus Setting
b1
b0
Bit Symbol
(b7-b4)
DS0
DS1
DS2
DS3
Symbol
DS
−
External space 0
data bus width select bit
External space 1
data bus width select bit
External space 2
data bus width select bit
External space 3
data bus width select bit
Unimplemented.
Write 0. Read as undefined value.
Bit Name
DS register
BYTE pin (for external space 3 only)
Bits PM05 and PM04 in the PM0 register
Bits PM11 and PM10 in the PM1 register
Pin & Registers Used for Setting
Address
000Bh
0: 8 bits wide
1: 16 bits wide
0: 8 bits wide
1: 16 bits wide
0: 8 bits wide
1: 16 bits wide
0: 8 bits wide
1: 16 bits wide
Function
After Reset
XXXX 1000b (BYTE pin = "L")
XXXX 0000b (BYTE pin = "H")
RW
RW
RW
RW
RW
−
8. Bus