參數(shù)資料
型號(hào): 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(shù): 135/172頁
文件大?。?/td> 1035K
代理商: MC68HC916X1
MC68HC916X1
MC68HC916X1TS/D
MOTOROLA
135
clearing STOP. If STOP is set during programming or erasing, the program/erase voltage is automati-
cally turned off. However, the enable program/erase bit (ENPE) remains set. If STOP is cleared, pro-
gram/erase voltage is automatically turned back on unless ENPE is cleared.
FRZ — Freeze Mode Control
0 = Disable program/erase voltage while FREEZE is asserted
1 = Allow ENPE bit to turn on the program/erase voltage while FREEZE signal is asserted
BOOT — Boot Control
0 = BEFLASH responds to bootstrap vector addresses after reset
1 = BEFLASH does not respond to bootstrap vector addresses after reset
On reset, BOOT takes on the value stored in its associated shadow bit. If BOOT = 0 and STOP = 0, the
module responds to program space accesses of IMB addresses $000000 to $000006 following reset,
and the contents of BFEBS[3:0] are used as bootstrap vectors. After address $000006 is read, the mod-
ule responds normally to control block or array addresses only.
LOCK — Lock Registers
0 = Write-locking disabled
1 = Write-locked registers protected
If the reset state of the LOCK is zero, it can be set once to protect the registers after initialization. When
set, LOCK cannot be cleared until reset occurs.
ASPC[1:0] — BEFLASH Array Space
The CPU16 operates only in supervisory mode, and as a result, ASPC1 must remain set to one for array
accesses to take place. The field can be written only if LOCK = 0 and STOP = 1. During reset, AS-
PC[1:0] takes on the default value programmed into the associated shadow register. Refer to
Table 70
.
BFETST
— BEFLASH Test Register
This register is used for factory test purposes only.
$YFF7A2
Table 70 Array Space Encoding
ASPC[1:0]
10
11
Type of Access
Supervisor program and data space
Supervisor program space
BFEBAH
— BEFLASH Base Address High Register
$YFF7A4
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:
SB
SB
SB
SB
SB
SB
SB
SB
BFEBAL
— BEFLASH Base Address Low Register
$YFF7A6
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ADDR
15
ADDR
14
ADDR
13
ADDR
12
ADDR
11
0
0
0
0
0
0
0
0
0
0
0
RESET:
SB
SB
SB
SB
SB
0
0
0
0
0
0
0
0
0
0
0
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