R5F21102DFP#U0 Renesas Electronics America, R5F21102DFP#U0 Datasheet - Page 88

• Manufacturer Part Number: R5F21102DFP#U0
• Description: IC R8C MCU FLASH 8K 32LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/10r

Specifications of R5F21102DFP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: LED, WDT
• Number Of I /o: 22
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• For Use With: R0K521134S000BE - KIT EVAL STARTER FOR R8C/13R0E521134EPB00 - KIT EMULATOR PROBE FOR PC7501R0E521134CPE00 - EMULATOR COMPACT R8C/13
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/10 Group
Rev.1.20 Jan 27, 2006
REJ09B0019-0120
Table 12.9 Timer Mode Specifications
NOTES:
1. The IR bit in the TZIC register is set to "1" (interrupt requested) if you write to the TZPR or PREZ register while both
Count source
Count operation
Divide ratio
Count start condition
Count stop condition
Interrupt request
generation timing
TZ
INT0 pin function
Read from timer
Write to timer
of the following conditions are met.
OUT
12.3.1 Timer Mode
To write to the TZPR or PREZ register in the above state, disable interrupts before the writing.
In this mode, the timer counts an internally generated count source or Timer Y underflow (see “Table
12.9 Timer Mode Specifications”). The Timer Z secondary is unused in timer mode. Figure 12.22
shows the TYZMR register and PUM register in timer mode.
<Conditions>
pin function
• TZWC bit in TYZMR register is set to "0" (write to reload register and counter simultaneously)
• TZS bit in TYZMR register is set to "1" (count start)
Item
(1)
page 76 of 180
f
• Down-count
• When the timer underflows, it reloads the reload register contents before continuing
1/(n+1)(m+1)
Write “1” (count start) to TZS bit in TYZMR register
Write “0” (count stop) to TZS bit in TYZMR register
• When Timer Z underflows [Timer Z interrupt]
Programmable I/O port
Programmable I/O port, or INT0 interrupt input
Count value can be read out by reading TZPR register.
Same applies to PREZ register.
Value written to TZPR register is written to both reload register and counter or written to
reload register only. Selected by program.
Same applies to PREZ register.
1
counting (When the Timer Z underflows, the contents of the Timer Z primary reload
register is reloaded.)
, f
2
, f
8
, Timer Y underflow
n: set value in PREZ register, m: set value in TZPR register
_______
Specification
12.3 Timer (Timer Z)