- 您现在的位置：买卖IC网 > PDF目录69028 > MC16S2CPU20B1 (FREESCALE SEMICONDUCTOR INC) 16-BIT, 20.97 MHz, MICROCONTROLLER, PQFP100 PDF资料下载
参数资料
| 型号： | MC16S2CPU20B1 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 16-BIT, 20.97 MHz, MICROCONTROLLER, PQFP100 |
| 封装： | TQFP-100 |
| 文件页数： | 10/104页 |
| 文件大小： | 812K |
| 代理商： | MC16S2CPU20B1 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页当前第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页
MC68HC16S2
MOTOROLA
MC68HC16S2TS/D
13
FRZSW — Freeze Software Enable
0 = When FREEZE is asserted, the software watchdog and periodic interrupt timer counters con-
tinue to run.
1 = When FREEZE is asserted, the software watchdog and periodic interrupt timer counters are dis-
abled, preventing interrupts while the MCU is in background debug mode.
FRZBM — Freeze Bus Monitor Enable
0 = When FREEZE is asserted, the bus monitor continues to operate.
1 = When FREEZE is asserted, the bus monitor is disabled.
SLVEN — Factory Test Mode Enabled
This bit is a read-only status bit that reflects the state of DATA11 during reset.
0 = IMB is not available to an external master.
1 = An external bus master has direct access to the IMB.
SHEN[1:0] — Show Cycle Enable
This field determines what the EBI does with the external bus during internal transfer operations. A
show cycle allows internal transfers to be externally monitored. Table 8 shows whether show cycle data
is driven externally, and whether external bus arbitration can occur. To prevent bus conflict, external
peripherals must not be enabled during show cycles.
SUPV — Supervisor/Unrestricted Data Space
This bit has no effect because the CPU16 always operates in the supervisor mode.
MM — Module Mapping
0 = Internal modules are addressed from $7FF000 – $7FFFFF.
1 = Internal modules are addressed from $FFF000 – $FFFFFF.
The logic state of MM determines the value of ADDR23 for IMB module addresses. Because
ADDR[23:20] are driven to the same state as ADDR19, MM must be set to one. If MM is cleared, IMB
modules are inaccessible. This bit can be written only once after reset.
IARB[3:0] — Interrupt Arbitration Field
Each module that can generate interrupt requests has an interrupt arbitration (IARB) field. Arbitration
between interrupt requests of the same priority is performed by serial contention between IARB field bit
values. Contention must take place whenever an interrupt request is acknowledged, even when there
is only a single pending request. An IARB field must have a non-zero value for contention to take place.
If an interrupt request from a module with an IARB field value of %0000 is recognized, the CPU pro-
cesses a spurious interrupt exception. Because the SIM routes external interrupt requests to the CPU,
the SIM IARB field value is used for arbitration between internal and external interrupts of the same pri-
ority. The reset value of IARB for the SIM is %1111, and the reset value of IARB for all other modules
is %0000, which prevents SIM interrupts from being discarded during initialization.
Table 8 Show Cycle Enable Bits
SHEN[1:0]
Action
00
Show cycles disabled, external bus arbitration allowed
01
Show cycles enabled, external bus arbitration not allowed
10
Show cycles enabled, external bus arbitration allowed
11
Show cycles enabled, external bus arbitration allowed,
internal activity is halted by a bus grant
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料 |
PDF描述 |
|---|---|
| MC68HC16X1CTH | 16-BIT, MROM, 16.78 MHz, MICROCONTROLLER, PQFP120 |
| MC68HC24VP | 16 I/O, PIA-GENERAL PURPOSE, PDIP40 |
| MC68HC33CFG | 48 I/O, PIA-GENERAL PURPOSE, PQFP100 |
| MC68HC33FG | 48 I/O, PIA-GENERAL PURPOSE, PQFP100 |
| MC68HC56FN | 1 CHANNEL(S), LOCAL AREA NETWORK CONTROLLER, PQCC28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC16XSD200FK | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Dual 16 mOhm High Side Switch |
| MC16Z1CFC25B1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC16Z1CPV20B1 | 制造商:Rochester Electronics LLC 功能描述:16 BIT MCU, 1K RAM - Bulk |
| MC16Z3BCAG16 | 功能描述:16位微控制器 - MCU 16BIT MCU 4KRAM 8KROM RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT |
| MC-17 | 功能描述:TERM BARRIER 17CIRC DUAL ROW RoHS:是 类别:连接器，互连式 >> 接线座 - 隔板块 系列:M 标准包装:10 系列:Beau™ 38780 端接块类型:阻隔块 电路数:15 导线入口数目:30 间距:0.438"（11.12mm） 行数:2 电流:15A 电压:300V 线规:14-22 AWG 顶部端子:螺钉 底部端子:焊片 阻挡层类型:双壁（双） 特点:法兰 颜色:黑 包装:散装 安装类型:通孔 工作温度:- 材料 - 绝缘体:聚对苯二甲酸丁二酯（PBT），玻璃纤维增强型 材料可燃性额定值:UL94 V-0 其它名称:038780-111538780-1115387801115 |
发布紧急采购，3分钟左右您将得到回复。