参数资料
型号: MCM16Y1BACFT16
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, MROM, MICROCONTROLLER, PQFP160
封装: QFP-160
文件页数: 125/138页
文件大小: 784K
代理商: MCM16Y1BACFT16
MC68HC16Y1
MOTOROLA
MC68HC16Y1TS/D
87
PAMOD — Pulse Accumulator Mode
0 = External event counting
1 = Gated time accumulation
PEDGE — Pulse Accumulator Edge Control
The effects of PEDGE and PAMOD are shown in the following table.
PCLKS — PCLK Pin State (Read-Only)
I4/O5 — Input Capture 4/Output Compare 5
0 = Output compare 5 enabled
1 = Input capture 4 enabled
PACLK[1:0] — Pulse Accumulator Clock Select (Gated Mode)
PACNT — Pulse Accumulator Counter
Eight-bit read/write counter used for external event counting or gated time accumulation.
TIC1–TIC3 — Input Capture Registers 1–3
$YFF90E, $YFF910, $YFF912
The input capture registers are 16-bit read-only registers which are used to latch the value of TCNT
when a specified transition is detected on the corresponding input capture pin. They are reset to $FFFF.
TOC1–TOC4 — Output Compare Registers 1–4
$YFF914, $YFF916, $YFF918, $YFF91A
The output compare registers are 16-bit read/write registers which can be used as output waveform
controls or as elapsed time indicators. For output compare functions, they are written to a desired match
value and compared against TCNT to control specified pin actions. They are reset to $FFFF.
TI4/O5 — Input Capture 4/Output Compare 5 Register
$YFF91C
This register serves either as input capture register 4 or output compare register 5, depending on the
state of I4/O5 in PACTL.
TCTL1 determines output compare mode and output logic level. TCTL2 determines the type of input
capture to be performed.
PAMOD
PEDGE
Effect
0
PAI Falling Edge Increments Counter
0
1
PAI Rising Edge Increments Counter
1
0
Zero on PAI Inhibits Counting
1
One on PAI Inhibits Counting
PACLK[1:0]
Pulse Accumulator Clock Selected
00
System Clock Divided by 512
01
Same Clock Used to Increment TCNT
10
TOF Flag from TCNT
11
External Clock, PCLK
TCTL1/TCTL2 — Timer Control Registers 1–2
$YFF91E
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
OM5
OL5
OM4
OL4
OM3
OL3
OM2
OL2
EDGE4
EDGE3
EDGE2
EDGE1
RESET:
0
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