參數(shù)資料
型號(hào)： SM89S16R1
廠商： Electronic Theatre Controls, Inc.
英文描述： 8-Bits Micro-controller With 64KB Flash ROM & IKB RAM & RTC & ADC & PWM & PDWU embedded
中文描述： 8位微與64KB的快閃記憶體控制器
文件頁(yè)數(shù)： 23/28頁(yè)
文件大?。?/td> 416K
代理商： SM89S16R1
SyncMOS Technologies Inc. SM89S16R1
8-Bits Micro-controller
With 64KB Flash ROM & IKB RAM & RTC & ADC & PWM & PDWU embedded
RTCIF: When interrupt occupy the RTC interrupt flag (IFR.2) will set, and the CPU will execute the interrupt
subroutine at the interrupt vector 43H. The RTC Interrupt Flag must clear by software.
IP1 ($B9H)
Bit7
Bit6
Bit5
Bit4
The interrupt priority can be set at IP1.2 or IP1.3.
PADC: When set to ‘1’, enable the ADC interrupt priority.
PRTC: When set to ‘1’, enable the RTC interrupt priority.
Specifications subject to change without notice contact your sales representatives for the most recent information.
SM89S16R1 V1.0 JANUARY 2005
23
Bit3
PADC
Bit2
PRTC
Bit1
Bit0
Divider 2
<Value>
int 1min
sec4
sec5
min0
min1
min2
min3
Divider 2
<Value>
int 1sec
sec0
sec1
sec2
sec3
min4
min5
5 bits shif register
<Value>
int out
RTCen
U2
74151
4
3
2
1
15
14
13
12
11
10
9
7
6
5
D0
D1
D2
D3
D4
D5
D6
D7
A
B
C
G
Y
Y
Divider 30
<Value>
second register
int 0.5min
32768Hz Clock in
int sel0
int sel1
Divider 16384
<Value>
minute register
5 bits shif register
<Value>
int 0.5sec
Figure 18 The RTC Block Diagram
LED Driving Capability Control
This function is set the sink current more then 10 mA for each pin, 26 mA for whole Port 0, 15 mA for whole Port 1 or
whole Port2 or whole Port3 or whole Port4, and total 71 mA for whole chip.
The SFR show as below:
Port Name
SFR Address
Port0
$92H
Port1
$93H
Port2
$94H
Port3
$95H
Port4
$96H
The Power Down Wake Up (PDWU) function
The device can be put into Power Down mode by writing 1 to bit PCON.1. The instruction that does this will be the
last instruction to be executed before the device goes into Power Down mode. In the Power Down mode, all the
clocks are stopped and the device comes to a halt. All activity is completely stopped and the power consumption is
reduced to the lowest possible value. In this state the ALE and PSEN pins are pulled low. The port pins output the
values held by their respective SFRs.
Iol(max) for total port
26 mA
15 mA
15 mA
15 mA
15 mA
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