參數(shù)資料
型號: GMS87C7216Q
廠商: Electronic Theatre Controls, Inc.
元件分類: 8位微控制器
英文描述: 8-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述: 8位單晶片微控制器
文件頁數(shù): 55/121頁
文件大小: 1645K
代理商: GMS87C7216Q
GMS81C7208/7216
FEB. 2005 Ver 1.04
51
value in the timer counter register (T0,T1), to be captured and
stored into registers CDR
n
(CDR0, CDR1), respectively. After
capture, the Timer counter register is cleared and restarts by hard-
ware. At this time, reading the address E1
H
as a CDR0, not T0.
T0, TDR0, CDR0 are located at same address. The other
CDR1~CDR3 are same. Refer to timer registers of page 26.
It has three transition modes: “falling edge”, “rising edge”, “both
edge” which are selected by interrupt edge selection register
IEDS. Refer to “17.4 External Interrupt” on page 63. In addition,
the transition at INT
n
pin generate an interrupt.
Note:
The CDRn and Tn are in same address.In the cap-
ture mode, reading operation is read as CDRn, not Tn be-
cause addressing path is opened to the CDRn.
Figure 13-11 16-bit Capture Mode
13.4 16-bit Capture Mode
16-bit capture mode is the same as 8-bit capture, except that the
timer register is being run will 16 bits. Configuration is shown in
Figure 13-11.
T0CK[2:0]
÷
2
÷
4
÷
8
MUX
000
001
010
÷
32
÷
128
÷
512
÷
2048
011
100
101
110
111
Edge Detector
EC0 PIN
T0CN
INT0IF
0: Stop
1: Clear and start
INT0
INTERRUPT
01
10
11
capture
IEDS[1:0]
T0IF
TIMER 0
INTERRUPT
Comparator
COMPARE DATA
INT0 PIN
T0ST
clear
clear
P
f
XIN
reserved
0X
1X
SCMR[1:0]
CDR1
CDR0
TDR1
TDR0
T1
T0
BTCL
T0CK1
7
6
5
4
3
2
1
0
-
CAP0
INITIAL VALUE: 00
H
ADDRESS: 0E0
H
TM0
T0CK0 T0CN T0ST
-
T0CK2
X
X
X means don’t care
1
BTCL
T1CK1
-
-
INITIAL VALUE: 00
H
ADDRESS: 0E2
H
TM1
T1CK0 T1CN T1ST
16BIT0
CAP1
X
1
0
1
1
1
X
X
X
X
X
X
X
16 BITS
MSB
LSB
f
EX
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