M30879FLFP#U3 Renesas Electronics America, M30879FLFP#U3 Datasheet - Page 90
![IC M32C/87 MCU FLASH 100QFP](/photos/12/31/123127/m30879flfp_u3_sml.jpg)
M30879FLFP#U3
Manufacturer Part Number
M30879FLFP#U3
Description
IC M32C/87 MCU FLASH 100QFP
Manufacturer
Renesas Electronics America
Series
M16C™ M32C/80r
Datasheets
1.M3087BFLGPU3.pdf
(93 pages)
2.M3087BFLGPU3.pdf
(629 pages)
3.M3087BFLGPU3.pdf
(364 pages)
Specifications of M30879FLFP#U3
Core Processor
M32C/80
Core Size
16/32-Bit
Speed
32MHz
Connectivity
CAN, EBI/EMI, I²C, IEBus, IrDA, SIO, UART/USART
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
85
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 26x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-QFP
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
-
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- Download datasheet (16Mb)
M32C/87 Group (M32C/87, M32C/87A, M32C/87B)
REJ09B0180-0151 Rev.1.51 Jul 31, 2008
Page 66 of 587
8.2
8.2.1
8.2.2
Described below are the signals required to access external devices and the bus timing. The signals are available in
memory expansion mode and microprocessor mode only.
Address bus is the signals to access 16-Mbyte space, and consists of 24 control pins; A0 to A22 and A23. A23
is an inverse output signal of the highest-order address bit.
Data bus is the signals for data input and output. The DS register selects either an 8-bit data bus width from D0
to D7 or a 16-bit data bus width from D0 to D15 for each external space. When a high-level (“H”) signal is
applied to the BYTE pin, the data bus accessing the external space 3 is 8 bits wide after reset. When a low-level
(“L”) signal is applied to the BYTE pin, the data bus accessing the external space 3 is 16 bits wide.
When changing single-chip mode to memory expansion mode, the address bus value is undefined until the
MCU accesses an external space.
Chip-select outputs share pins with address bus, A20 to A22 and A23. Bits PM11 and PM10 in the PM1 register
determine the CS areas to be accessed and the number of chip-select outputs. Maximum of four chip-select
outputs are provided.
In microprocessor mode, no chip-select signal is output after reset. Only A23, however, can perform as a chip-
select output.
The CSi pin (i = 0 to 3) outputs an “L” signal while accessing its corresponding external space. An “H” signal is
output while the MCU is accessing other external spaces. Figure 8.2 shows an example of address bus and chip-
select outputs (separate bus).
Bus Control
Address Bus and Data Bus
Chip-Select Output
8. Bus
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