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參數(shù)資料
型號： 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）
文件頁數(shù)： 118/122頁
文件大小： 749K
代理商： MC68HC16Y1
MOTOROLA
118
MC68HC16Y1
MC68HC16Y1TS/D
ASPC — ROM Array Space Field
Because the MC68HC16Y1 operates only in supervisory mode, ASPC determines whether accesses
are restricted solely to program space, or whether accesses are made to both program and data space.
In systems with restricted access levels, ASPC also determines whether accesses are restricted solely
to supervisor space. The reset state of ASPC is user specified. The table below shows ASPC encoding.
WAIT — Wait States Field
WAIT specifies the number of wait states inserted by the MRM during ROM array accesses. It allows
the user to optimize bus speed in a particular application by controlling the number of wait states that
are inserted prior to internal DSACK generation. Each wait state has a duration of one system clock
cycle. This allows a user to transport code from a slower emulation or development system memory to
the ROM array without retiming the system. The reset state of WAIT is user specified. The table below
shows WAIT encoding. A no-wait encoding (%00) corresponds to a three clock-cycle bus. The fast ter-
mination encoding (%11) corresponds to a two clock-cycle bus — microcontroller modules typically re-
spond at this rate, but fast termination can also be used to access fast external memory.
ROMBAH and ROMBAL are used to specify ROM array base address. They can only be written when
STOP = 1 and LOCK = 0. This prevents accidental remapping of the array. Since the states of AD-
DR[23:20] follow the state of ADDR19 in the MC68HC16Y1, addresses in the range $080000 to
$F7FFFF cannot be accessed. Because the 48 Kbyte ROM array in the MC68HC16Y1 must be mapped
to a 64 Kbyte boundary, ROMBAL always contains $0000.
ASPC[1:0]
X0
X1
State Specified
Program and data access
Program access only
WAIT[1:0]
00
01
10
11
Cycles per Transfer
3
4
5
2
ROMBAH
— Array Base Address Register High
$YFF824
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
NOT USED
ADDR
23
ADDR
22
ADDR
21
ADDR
20
ADDR
19
ADDR
18
ADDR
17
ADDR
16
RESET:
0
0
0
0
0
0
0
0
USER SPECIFIED
ROMBAL
— Array Base Address Register Low
$YFF826
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RESET:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
相關PDF資料
PDF描述
MC68HC16Z1 16-Bit Modular Microcontroller(16位模塊化微控制器)
MC68HC24 Port Replacement Unit (PRU)
MC68HC24D Port Replacement Unit (PRU)
MC68HC705J Microcontrollers
MC68HC705K1 8-Bit Microcontroller Units (MCU).(8位微控制器)
相關代理商/技術參數(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 最大時鐘頻率:24 MHz 程序存儲器大小: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 最大時鐘頻率:24 MHz 程序存儲器大小: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 安裝風格:SMD/SMT
MC68HC16Z1CAG20 制造商:Freescale Semiconductor 功能描述:Microcontroller
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