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參數資料
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: 56/122頁
文件大小: 749K
代理商: MC68HC16Y1
MOTOROLA
56
MC68HC16Y1
MC68HC16Y1TS/D
Access to port A, B, E, G, and H data and data direction registers and port E pin assignment register
requires three clock cycles, to ensure timing compatibility with external port replacement logic. Port reg-
isters are byte-addressable and are grouped to allow coherent word access to port data register pairs
A-B and G-H, as well as word-aligned long word coherency of A-B-G-H port data registers. Port regis-
ters are not affected by CPU reset.
If emulator mode is enabled, accesses to ports A, B, E, G, and H data and data direction registers and
port E pin assignment register are ignored, and can be replaced with external logic, such as a Motorola
Port Replacement Unit. Port F registers remain accessible.
A write to port A, B, E, F, G, or H data register is stored in the internal data latch, and if any port pin is
configured as an output, the value stored for that bit is driven on the pin. A read of the port data register
returns the value at the pin only if the pin is configured as a discrete input. Otherwise, the value read is
the value stored in the register.
3.8.1 Ports A and B
Ports A and B are available in single-chip mode only. One data direction register controls data direction
for both ports. Port A and B registers can be read or written at any time the MCU is not in emulator mode.
DDA and DDB control the direction of the pin drivers for ports A and B, respectively, when the pins are
configured for I/O. Setting DDA or DDB configures all pins in the corresponding port as outputs. Clear-
ing DDA or DDB to zero configures all pins in the corresponding port as inputs.
Table 18 General-Purpose I/O Ports
Port
A
B
E
F
G
H
Shared Function
ADDR[18:11]
ADDR[10:3]
Bus control
IRQ[7:1]/MODCLK
DATA[15:8]
DATA[7:0]
Modes
Single chip
Single chip
All
All
Single chip
Single chip, 8-bit expanded
PORTA
— Port A Data Register
$YFFA0A
7
6
5
4
3
2
1
0
PA7
RESET:
U
PA6
PA5
PA4
PA3
PA2
PA1
PA0
U
U
U
U
U
U
U
PORTB
— Port B Data Register
$YFFA0B
7
6
5
4
3
2
1
0
PB7
RESET:
U
PB6
PB5
PB4
PB3
PB2
PB1
PB0
U
U
U
U
U
U
U
DDRAB
— Port A/B Data Direction Register
$YFFA14
7
0
6
0
5
0
4
0
3
0
2
0
1
0
DDA
DDB
RESET:
0
0
0
0
0
0
0
0
相關PDF資料
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相關代理商/技術參數
參數描述
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 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 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 數據總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數據 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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