參數(shù)資料
型號： MC68331CFC20B1
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 20 MHz, MICROCONTROLLER, PQFP132
封裝： 0.950 X 0.950 INCH, 0.025 INCH PITCH, PLASTIC, QFP-132
文件頁數(shù)： 69/90頁
文件大?。?/td> 481K
代理商： MC68331CFC20B1
MC68331
MOTOROLA
MC68331TS/D
71
Y = M111, where M is the logic state of the modmap (MM) bit in SIMCR.
6.2 Capture/Compare Unit
The capture/compare unit features three input capture channels, four output compare channels, and
one input capture/output compare channel (function selected by control register). These channels share
a 16-bit free-running counter (TCNT), which derives its clock from seven stages of a 9-stage prescaler
or from external clock input PCLK. This section, which is similar to the timer found on the MC68HC11F1,
also contains one pulse accumulator channel. The pulse accumulator logic includes its own 8-bit
counter and can operate in either event counting mode or gated time accumulation mode. Refer to the
following block diagrams of the GPT timer and prescaler.
Table 26 GPT Address Map
Access
Address
15
8
7
0
S
$YFF900
GPT MODULE CONFIGURATION (GPTMCR)
S
$YFF902
(RESERVED FOR TEST)
S
$YFF904
INTERRUPT CONFIGURATION (ICR)
U
$YFF906
PGP DATA DIRECTION (DDRGP)
PGP DATA (PORTGP)
U
$YFF908
OC1 ACTION MASK (OC1M)
OC1 ACTION DATA (OC1D)
U
$YFF90A
TIMER COUNTER (TCNT)
U
$YFF90C
PA CONTROL (PACTL)
PA COUNTER (PACNT)
U
$YFF90E
INPUT CAPTURE 1 (TIC1)
U
$YFF910
INPUT CAPTURE 2 (TIC2)
U
$YFF912
INPUT CAPTURE 3 (TIC3)
U
$YFF914
OUTPUT COMPARE 1 (TOC1)
U
$YFF916
OUTPUT COMPARE 2 (TOC2)
U
$YFF918
OUTPUT COMPARE 3 (TOC3)
U
$YFF91A
OUTPUT COMPARE 4 (TOC4)
U
$YFF91C
INPUT CAPTURE 4/OUTPUT COMPARE 5 (TI4/O5)
U
$YFF91E
TIMER CONTROL 1 (TCTL1)
TIMER CONTROL 2 (TCTL2)
U
$YFF920
TIMER MASK 1 (TMSK1)
TIMER MASK 2 (TMSK2)
U
$YFF922
TIMER FLAG 1 (TFLG1)
TIMER FLAG 2 (TFLG2)
U
$YFF924
FORCE COMPARE (CFORC)
PWM CONTROL C (PWMC)
U
$YFF926
PWM CONTROL A (PWMA)
PWM CONTROL B (PWMB)
U
$YFF928
PWM COUNT (PWMCNT)
U
$YFF92A
PWMA BUFFER (PWMBUFA)
PWMB BUFFER (PWMBUFB)
U
$YFF92C
GPT PRESCALER (PRESCL)
$YFF92E–
$YFF93F
NOT USED
相關(guān)PDF資料
PDF描述
MC68331CPV20B1 32-BIT, 20 MHz, MICROCONTROLLER, PQFP144
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