Filter
Top Products
288
CHAPTER 16 8-/16-BIT PPG TIMER
16.2.2 Block Diagram of 8-/16-bit PPG Timer D
The 8-/16-bit PPG timer D consists of the following blocks.
■ Block Diagram of 8-/16-bit PPG Timer D
Figure 16.2-3 Block Diagram of 8-/16-bit PPG Timer D
CLK
MD0
R
S
Q
PEN1
PE1
PIE1 PUF1
MD1 MD0
-
PCS2 PCS0 PCM2 PCM1 PCM0 -PCS1
3
2
PPGD
REV
High level side data bus
Low level side data bus
PPGD operation mode control register (PPGCD
)
PPGD reload
register
Operation
mode control
signal
PRLHD
(High level side)
PRLLD
(Low level side)
Re-
served
PPGD temporary
buffer (PRLBHD)
Interrupt
request
output*
Reload register
L/H selector
Select signal
Clear
Reload
Count start value
Under-
flow
PPGD down counter
(PCNTD)
PPGD underflow
(to PPGC)
Invert
PPGD
output latch
PPG output control circuit
Pin
PPGC
output
PPGC underflow
(from PPGC)
Timebase timer output
(512/HCLK)
Resource clock (1/
φ
)
Resource clock (2/
φ
)
Resource clock (4/
φ
)
Resource clock (8/
φ
)
Resource clock (16/
φ
)
Count
clock
selector
Select signal
PPGC/D count clock select register (PPGCD)
- : Undefined (from PPG0)
Reservation: Reserved bit
HCLK : Oscillation clock frequency
φ
: Machine clock frequency
* : The interrupt output of 8-/16- bit PPG timer D is combined to one interrupt by OR circuit with the interrupt
request output of PPG timer C.