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| 型號(hào)： | MC68HC16Y1 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 16-Bit Modular Microcontroller(16位模塊化微控制器) |
| 中文描述： | 16位微控制器模塊（16位模塊化微控制器） |
| 文件頁(yè)數(shù)： | 36/122頁(yè) |
| 文件大小： | 749K |
| 代理商： | MC68HC16Y1 |
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MOTOROLA
36
MC68HC16Y1
MC68HC16Y1TS/D
RWD — Read/Write Disable
0 = R/W signal operates normally
1 = R/W signal placed in high-impedance state.
RWD is cleared to zero when the MCU is in an expanded mode, and set to one in single-chip mode.
RWD can be written only once after reset.
IARB[3:0] — Interrupt Arbitration
Each module that can generate interrupts, including the SCIM, has an IARB field. Each IARB field can
be assigned a value from $0 to $F. During an interrupt acknowledge cycle, IARB permits arbitration
among simultaneous interrupts of the same priority level. The reset value of the SCIM IARB field is $F.
This prevents SCIM interrupts from being discarded. Initialization software must set the IARB field to a
lower value if lower priority interrupts are to be arbitrated.
The reset status register contains a bit for each reset source in the MCU. A bit set to one indicates what
type of reset has occurred. When multiple reset sources occur at the same time, more than one bit in
RSR can be set. The reset status register is updated by the reset control logic when the MCU comes
out of reset. This register can be read at any time. A write has no effect.
EXT — External Reset
Reset was caused by an external signal.
POW — Power-Up Reset
Reset was caused by the power-up reset circuit.
SW — Software Watchdog Reset
Reset was caused by the software watchdog circuit.
HLT — Halt Monitor Reset
Reset was caused by the system protection submodule halt monitor.
LOC — Loss of Clock Reset
Reset was caused by loss of clock submodule frequency reference. This reset can only occur if the
RSTEN bit in the clock submodule is set and the VCO is enabled.
SYS — System Reset
Reset was caused by the CPU RESET instruction. System reset does not load a reset vector or affect
any internal CPU registers or SIM configuration registers, but does reset external devices and other in-
ternal modules.
3.2 Operating Modes
During reset, the SCIM configures itself according to the states of the DATA, BERR, MODCLK, and
BKPT pins. DATA[11:0] provide pin configuration information. BERR, MODCLK, and BKPT determine
basic operation.
The SCIM can be configured to operate in one of three modes: 16-bit expanded, 8-bit expanded, and
single chip. Operating mode is determined by the value of the DATA1 and BERR signals coming out of
reset.
RSR
— Reset Status Register
$YFFA07
7
6
5
4
3
0
2
1
0
EXT
POW
SW
HLT
LOC
SYS
TST
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC16Z1CAG | 制造商:Freescale Semiconductor 功能描述: |
| MC68HC16Z1CAG16 | 功能描述:16位微控制器 - MCU 16 BIT MCU 1K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MC68HC16Z1CAG16 | 制造商:Freescale Semiconductor 功能描述:IC16-BIT MICROCONTROLLER |
| MC68HC16Z1CAG20 | 功能描述:16位微控制器 - MCU 16 BIT MCU 1K RAM RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MC68HC16Z1CAG20 | 制造商:Freescale Semiconductor 功能描述:Microcontroller |
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