M30800SFP-BL#U5 Renesas Electronics America, M30800SFP-BL#U5 Datasheet - Page 110

• Manufacturer Part Number: M30800SFP-BL#U5
• Description: MCU 3/5V 0K,PB-FREE 100-QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/80r

Specifications of M30800SFP-BL#U5

• Core Processor: M16C/80
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 45
• Program Memory Type: ROMless
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

M
R
R
e
E
1
v
J
6
Table 13.1 Specifications of timer mode
Figure 13.5 Timer Ai mode register in timer mode
1 .
0
Count source
Count operation
Divide ratio
Count start condition
Count stop condition
Interrupt request generation timing
TAi
TAi
Read from timer
Write to timer
Select function
C
(1) Timer mode
9
0 .
8 /
B
In this mode, the timer counts an internally generated count source. (See Table 13.1) Figure 13.5 shows
the timer Ai mode register in timer mode.
0
IN
OUT
0
0
Timer Ai mode register
1
b7
A
pin function
8
G
u
7
o r
pin function
b6
. g
0 -
u
1
0
Item
p
b5
0
0
, 2
0
b4
2
0
0
b3
5
Page 97
b2
0 0
b1
b0
f
• Down count
• When the timer underflows, it reloads the reload register contents before
1/(n+1)
Count start flag is set (= 1)
Count start flag is reset (= 0)
When the timer underflows
Programmable I/O port or gate input
Programmable I/O port or pulse output (Setting by the corresponding function
select registers A and B)
Count value can be read out by reading timer Ai register
• When not counting
• When counting
• Gate function
• Pulse output function
Note 1: The bit can be “0” or “1”.
Note 2: Set the corresponding port function select register to I/O port, and port
1
continuing counting
Value written to timer Ai register is written to both reload register and counter
Value written to timer Ai register is written to only reload register
(Transferred to counter at next reload time)
Counting can be started and stopped by the TAi
Each time the timer underflows, the TAi
Bit symbol
, f
f o
TMOD0
TMOD1
TCK0
TCK1
8
MR0
MR1
MR2
MR3
Symbol
TAiMR(i=0 to 4)
, f
3
2
32
direction register to “0”.
9
, fc
n : Set value
32
Operation mode
select bit
Gate function select bit
0 (Set to “0” in timer mode)
Count source select bit
This bit is invalid in M16C/80 series.
Port output control is set by the function select registers A and B.
0356
Bit name
Address
16
to 035A
Specification
16
When reset
00000X00
0 0 : Timer mode
b4 b3
0 X
1 0 : Timer counts only when TA
1 1 : Timer counts only when TA
b7 b6
0 0 : f
0 1 : f
1 0 : f
1 1 : f
b1 b0
(Note 1)
held “L” (Note 2)
held “H” (Note 2)
1
8
32
C32
OUT
2
: Gate function not available
pin’s polarity is reversed
(TAi
Function
IN
IN
pin is a normal port pin)
pin’s input signal
iIN
iIN
pin is
pin is
13. Timer A
R
– –
W