M30280F6HP RENESAS [Renesas Technology Corp], M30280F6HP Datasheet - Page 140

• Manufacturer Part Number: M30280F6HP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

M
R
R
1
e
E
6
Table 12.9 Specifications in A/D Trigger Mode
NOTES:
. v
J
C
12.2.4 A/D Trigger Mode
Count Source
Count Operation
Divide Ratio
Count Start Condition
Count Stop Condition
Interrupt Request
Generation Timing
TBiIN Pin Function
Read From Timer
Write To Timer
0
2
2 /
9
A/D trigger mode is used together with simultaneous sample sweep mode or delayed trigger mode 0 of
A/D conversion to start A/D conversion. It is used in timer B0 and timer B1 only. In this mode, the timer
starts counting by one trigger until the count value becomes 0000
register in A/D trigger mode and Figure 12.24 shows the TB2SC register.
1. A/D conversion is started by the timer underflow. For details refer to 15. A/D Converter.
2. When using in delayed trigger mode 0, set the larger value than the value of the timer B0 register
0 .
B
8
0
0
to the timer B1 register.
0
G
4
J
o r
7
a
0 -
. n
u
Item
p
2
3
0
, 1
(
0
M
2
1
(2)
0
6
0
C
7
2 /
, 8
page 120
M
1
6
f
• Decrement
• When the timer underflows, reload register contents are reloaded before
• When a trigger is generated during the count operation, the count is not
When the TBiS (i=0,1) bit in the TABSR register is "1"(count started), the
TBiEN (i=0,1) in TB2SC register is "1" (A/D trigger mode) and the following
trigger selected by the TB2SEL bit in the TB2SC register
is generated.
• Timer B2 interrupt
• Underflow of Timer B2 interrupt generation frequency counter setting
• After the count value is 0000
• Set the TBiS bit to "0"(count stopped)
Timer underflows
I/O port
• When writing in the TBi register during count stopped.
• When writing in the TBi register during count.
Count value can be read by reading TBi register
C
1
stopping counting
affected
1/(n+1)
Value is written to both reload register and counter
Value is written to only reload register (Transfered to counter when reloaded next)
, f
2 /
f o
2
8
, f
) B
3
8
8
, f
5
32
, and f
n: Setting value of TBi register (i=0,1)
0000
C32
(1)
16
-FFFF
16
Specification
16
and reload register contents are reloaded
16
. Figure 12.23 shows the TBiMR
12. Timer