M30262F8GP#U7 Renesas Electronics America, M30262F8GP#U7 Datasheet - Page 93

• Manufacturer Part Number: M30262F8GP#U7
• Description: IC M16C/TINY MCU FLASH 48LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/Tiny/26r

Specifications of M30262F8GP#U7

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 38
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K 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: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Timer A
Table 1.12.4. Timer specifications in one-shot timer mode
Figure 1.12.12. Timer Ai mode register in one-shot timer mode
(3) One-shot timer mode
Count source
Count operation
Divide ratio
Count start condition
Count stop condition
Interrupt request generation timing
TAi
TAi
Read from timer
Write to timer
In this mode, the timer operates only once. (See Table 1.12.4.) When a trigger occurs, the timer starts
up and continues operating for a given period. Figure 1.12.12 shows the timer Ai mode register in
one-shot timer mode.
IN
OUT
pin function
pin function
Timer Ai mode register
b7
Item
Preliminary Specifications Rev. 0.9
b6
Specifications in this manual are tentative and subject to change.
b5
0
b4
b3
b2
b1
1 0
b0
f
• The timer counts down
• When the count reaches 0000
• If a trigger occurs when counting, the timer reloads a new count and restarts counting
1/n
• An external trigger is input
• The timer overflows
• The one-shot start flag is set (= 1)
• A new count is reloaded after the count has reached 0000
• The count start flag is reset (= 0)
The count reaches 0000
Programmable I/O port or trigger input
Programmable I/O port or pulse output
When timer Ai register is read, it indicates an indeterminate value
• When counting in progress
1
• When counting stopped
, f
Note 1: The settings of the corresponding port register and port direction register are invalid.
Note 2: Valid only when the TAi
Note 3: Set the corresponding port direction register to 0 .
When a value is written to timer Ai register, it is written to both reload
register and counter
When a value is written to timer Ai register, it is written to only reload register
(Transferred to counter at next reload time)
Bit symbol
2
TMOD0
TMOD1
, f
TCK0
TCK1
MR0
MR1
MR2
MR3
Symbol
TAiMR(i = 0 to 4) 0396
8
n : Set value
, f
(addresses 0382
32
Renesas Technology Corp.
, f
External trigger select
bit (Note 2)
Operation mode select bit
Pulse output function
select bit
Trigger select bit
0 (Must always be 0 in one-shot timer mode)
Count source select bit
C32
Bit name
16
and 0383
Address
16
IN
16
to 039A
pin is selected by the event/trigger select bit
16
16
Specification
, the timer stops counting after reloading a new count
). If timer overflow is selected, this bit can be 1 or 0 .
16
b1 b0
1 0 : One-shot timer mode
0 : Pulse is not output
1 : Pulse is output (Note 1)
0 : Falling edge of TAi
1 : Rising edge of TAi
0 : One-shot start flag is valid
1 : Selected by event/trigger select
b7 b6
0 0 :
0 1 : f
1 0 : f
1 1 : f
When reset
(TA
(TAi
bits
00
f
1
8
32
C32
iOUT
OUT
16
or f
2
pin is a normal port pin)
pin is a pulse output pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Function
IN
IN
pin's input signal (Note 3)
pin's input signal (Note 3)
16
M16C/26 Group
R
W
85