M3087BFLBGP#U5 Renesas Electronics America, M3087BFLBGP#U5 Datasheet - Page 215

• 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 191 of 587
Figure 15.27
15.2.1
Table 15.9
NOTES:
Count source
Count operation
Counter cycle
Count start condition
Count stop condition
Interrupt request generation timing When the timer underflows
TBiIN pin function
Read from timer
Write to timer
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
n = contents of the reload
register
TBiS bit in the
TABSR or TBSR
register
IR bit in the TBiIC
register
i = 0 to 5
(Condition) TBiMR register: Bits TMOD1 and TMOD0 are set to 00b (timer mode).
In timer mode, the timer counts an internally generated count source.
Table 15.9 lists specifications of timer mode. Figure 15.27 shows a timer mode operation (Timer B).
Timer Mode
Item
Specifications of Timer Mode
Operation in Timer Mode (Timer B)
FFFFh
0000h
1
0
1
0
n
Count starts
• Counter decrements
n + 1
The TBiS bit in the TABSR or TBSR register is set to 1 (count starts)
The TBiS bit is set to 0 (count stops)
Programmable I/O port
A read from the TBi register returns a counter value.
• A write to the TBi register while the count is stopped:
• A write to the TBi register while counting:
f1, f8, f2n
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).
fj
When the timer underflows, the contents of the reload register are reloaded
into the counter and the count continues.
n: setting value of the TBi register (i=0 to 5), 0000h to FFFFh
fj: count source frequency
(1)
Reload
, fC32
Underflow
(2)
Set to 0 by an interrupt request acknowledged or by a program
Count stops
Specification
Count resumes
Reload
Underflow
15. Timer B