M3087BFKGP#U3 Renesas Electronics America, M3087BFKGP#U3 Datasheet - Page 197
![IC M32C/87B MCU FLASH 144LQFP](/photos/12/31/123119/m3087bfkgp_u3_sml.jpg)
M3087BFKGP#U3
Manufacturer Part Number
M3087BFKGP#U3
Description
IC M32C/87B MCU FLASH 144LQFP
Manufacturer
Renesas Electronics America
Series
M16C™ M32C/80r
Datasheet
1.M3087BFLGPU3.pdf
(629 pages)
Specifications of M3087BFKGP#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
121
Program Memory Size
768KB (768K 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
-40°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
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
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M32C/87 Group (M32C/87, M32C/87A, M32C/87B)
REJ09B0180-0151 Rev.1.51 Jul 31, 2008
Page 173 of 587
Figure 15.14
15.1.1
Table 15.3
NOTES:
Count source
Count operation
Counter cycle
Count start condition
Count stop condition
Interrupt request generation timing When the timer underflows
TAiIN pin function
TAiOUT pin function
Read from timer
Write to timer
Selectable function
1. Bits CNT3 to CNT0 in the TCSPR register select no division (n = 0) or divide-by-2n (n = 1 to 15).
2. Wait for one or more count source cycles to write after the count starts.
Contents of the counter
TAiS bit in the
TABSR register
IR bit in the TAiIC
register
TAiOUT pin (output)
i = 0 to 4
n = contents of the reload
In timer mode, the timer counts an internally generated count source.
Table 15.3 lists specifications of timer mode. Figure 15.14 shows a timer mode operation (Timer A).
register
Timer Mode
Item
Operation in Timer Mode (Timer A)
Specifications of Timer Mode
FFFFh
0000h
“H”
“L”
1
0
1
0
n
(Conditions) TAiMR register: Bits TMOD1 and TMOD0 are set to 00b (timer mode).
Count starts
f1, f8, f2n
• Counter decrements
The TAiS bit in the TABSR register is set to 1 (count starts)
The TAiS bit is set to 0 (count stops)
Input for gate function
Pulse output
A read from the TAi register returns a counter value
• A write to the TAi register while the count is stopped:
• A write to the TAi register while counting:
• Gate function
• Pulse output function
n + 1
The value is written to both the reload register and the counter.
The value is written to the reload register (It is transferred to the counter at the
next reload timing).
A signal applied to the TAiIN pin determines whether the count starts or stops.
The polarity of the TAiOUT pin is inverted whenever the timer underflows.
The TAiOUT pin outputs an “L” signal while the TAiS bit is 0 (count stops).
When the timer underflows, the contents of the reload register are reloaded
into the counter and the count continues.
fj
(1)
Reload
, fC32
n: setting value of the TAi register (i = 0 to 4), 0000h to FFFFh
Underflow
fj: count source frequency
Bits MR2 and MR1 are set to 00b (gate function disabled).
(2)
Set to 0 by an interrupt request acknowledgement or by a program
Count stops
Specification
Reload
Underflow
15. Timer A
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