M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 197

• 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 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