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參數資料
型號: MC68HC916X1
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: 18/172頁
文件大小: 1035K
代理商: MC68HC916X1
MOTOROLA
18
MC68HC916X1
MC68HC916X1TS/D
3.2.2 16-Bit Expanded Mode
In 16-bit expanded mode, (BERR = 1, DATA1 = 0) pins ADDR[18:3] and DATA[15:0] are configured
as address and data pins, respectively. The alternate functions for these pins as ports A, B, G, and
H are unavailable.
Table 11
is a summary of pin function options for 16-bit data bus operation.
3.2.3 8-Bit Expanded Mode
In 8-bit expanded mode (BERR = 1, DATA1 = 1), pins DATA[7:0] are configured as an 8-bit I/O port.
Pins DATA[15:8] are configured as data pins. Pins ADDR[18:3] are configured as address pins.
Emulator mode is always disabled.
Table 12
is a summary of pin function selections for 8-bit data
bus operation.
1. CS[9:7] outputs are not available on the MC68HC916X1. Corresponding pin assignment register fields
(CSPA1[3:1]) are affected by the state of DATA[6:4] during reset.
2. CSE
is enabled when DATA10 and DATA1 = 0 during reset.
3. CSM
is enabled when DATA13, DATA10 and DATA1 = 0 during reset.
4. DATA11 must remain high during reset to ensure normal operation of MCU.
5. Driven to put BEFLASH in STOP mode. STOP mode disabled when DATA15 is held high and STOP shad-
ow bit is cleared.
Table 11 16-Bit Expanded Mode Reset Configuration
Pin(s) Affected
Select Pin
Default Function
(Pin Held High)
CS0
CS3
FC1
CS5
CS6
CS10
Alternate Function
(Pin Held Low)
BR
FC0
FC1
FC2
ADDR19
ADDR23
BR/CS0
FC0/CS3/PC0
FC1/PC1
FC2/CS5/PC2
ADDR19/CS6/PC3
ADDR23/CS10/ECLK
DATA2
DATA3
1
DATA7
1
DATA8
DSACK1/PE1
DS/PE4
AS/PE5
SIZ0/PE6
SIZ1/PE7
MODCLK/PF0
IRQ[7:6]/PF[7:6]
BGACK/CSE
BG/CSM
Reserved
Emulation Mode (SCIM)
STOP Mode (BEFLASH)
DSACK1
DS
AS
SIZ0
SIZ1
MODCLK
IRQ[7:6]
BGACK
BG
Normal Operation
Disabled
Array Enabled
5
PE1
PE4
PE5
PE6
PE7
PF0
PF[7:6]
CSE
2
CSM
3
Reserved
Enabled
Array Disabled
DATA9
DATA10
DATA11
4
DATA10
DATA15
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