參數(shù)資料
型號： SPMC916X1CTH16
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 16.78 MHz, MICROCONTROLLER, PQFP120
封裝： QFP-120
文件頁數(shù)： 41/172頁
文件大小： 1200K
代理商： SPMC916X1CTH16
MC68HC916X1
MOTOROLA
MC68HC916X1TS/D
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
$YFF7A2
This register is used for factory test purposes only.
Table 70 Array Space Encoding
ASPC[1:0]
Type of Access
10
Supervisor program and data space
11
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
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
RESET:
SB
0
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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