M30802FCGP#D3 Renesas Electronics America, M30802FCGP#D3 Datasheet - Page 119

• Manufacturer Part Number: M30802FCGP#D3
• Description: IC M16C MCU FLASH 128K 144LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/80r

Specifications of M30802FCGP#D3

• Core Processor: M16C/80
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 121
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• 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: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

M
R
R
14. Timer B
e
E
1
v
J
6
Figure 14.1 Block diagram of timer B
Figure 14.2 Timer B-related registers (1)
1 .
0
C
Figure 14.1 shows the block diagram of timer B. Figures 14.2 and 14.3 show the timer B-related registers.
Use the timer Bi mode register (i = 0 to 5) bits 0 and 1 to choose the desired mode.
Timer B has three operation modes listed as follows:
9
0 .
8 /
B
• Timer mode: The timer counts an internal count source.
• Event counter mode: The timer counts pulses from an external source or a timer overflow.
• Pulse period/pulse width measuring mode: The timer measures an external signal's pulse period or
0
0
pulse width.
0
1
Timer Bi mode register
A
b7
8
G
TBi
(i = 0 to 5)
u
7
o r
. g
0 -
b6
IN
u
1
0
p
b5
0
, 2
0
f
f
f
Clock source selection
f
C32
8
32
1
2
b4
0
0
b3
5
Page 106
b2
Can be selected in only
event counter mode
Polarity switching
and edge pulse
b1
TBj overflow
(j = i – 1. Note, however,
j = 2 when i = 0,
j = 5 when i = 3)
b0
Note 1: Timer B0, timer B3.
Note 2: Timer B1, timer B2, timer B4, timer B5.
Bit symbol
TMOD0
TMOD1
f o
TCK0
TCK1
MR0
MR1
MR2
MR3
• Event counter
• Timer
• Pulse period/pulse width measurement
Symbol
TBiMR(i = 0 to 5) 035B
3
2
9
Count source select bit
Operation mode select bit
Function varies with each operation mode
(Function varies with each operation mode)
031B
Bit name
Address
16
16
to 035D
to 031D
(address 0340
Count start flag
Counter reset circuit
16
16
0 0 : Timer mode
0 1 : Event counter mode
1 0 : Pulse period/pulse width
1 1 : Must not be set
b1 b0
00XX0000
00XX0000
When reset
Timer B0
Timer B1
Timer B2
Timer B3
Timer B4
Timer B5
16
measurement mode
)
TBi
2
2
Function
Data bus high-order bits
Data bus low-order bits
0351
0353
0355
0311
0313
0315
Reload register (16)
Low-order 8 bits
Counter (16)
16
16
16
16
16
16
Address
0350
0352
0354
0310
0312
0314
16
16
16
16
16
16
Timer B2
Timer B0
Timer B1
Timer B5
Timer B3
Timer B4
TBj
(Note 1)
(Note 2)
R
High-order 8 bits
14. Timer B
W