參數(shù)資料
型號: MC68HC05F4FB
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 1.789 MHz, MICROCONTROLLER, PQFP44
封裝: QFP-44
文件頁數(shù): 21/130頁
文件大?。?/td> 2089K
代理商: MC68HC05F4FB
MC68HC05F4
MOTOROLA
A-5
A
A.2.2
EPROM
The MC68HC705F4 has 7680 bytes of EPROM located from $2000 to $3DFF, plus 16 bytes of
user vectors from $3FF0 to $3FFF. Up to 4 bytes of EPROM can be programmed simultaneously
by correctly manipulating the bits in the EPROM programming register.
A.2.2.1
EPROM programming register (PROG)
EPGM — EPROM program control
1 (set)
Programming power connected to the EPROM array.
0 (clear) –
Programming power disconnected from the EPROM array.
ELATCH and EPGM cannot be set on the same write operation. EPGM can only be set if ELATCH
is set. EPGM is automatically cleared when ELATCH is cleared.
ELATCH — EPROM latch control
1 (set)
EPROM address and data buses congured for programming.
0 (clear) –
EPROM address and data buses congured for normal reads
(1) Not available in 28-pin packages
Timer counter high (CNTH)
$0028
(bit 15)
(bit 8) 1111 1111
Timer counter low (CNTL)
$0029
1111 1100
Alternate counter high (ACNTH)
$002A
(bit 15)
(bit 8) 1111 1111
Alternate counter low (ACNTL)
$002B
1111 1100
Timer control 1 (TCR1)
$002C
ICI1E
ICI2E
OCI1E
TOIE
CO1E IEDG1 IEDG2 OLVL1 0000 0uu0
Timer control 2 (TCR2)
$002D
0
OCI2E
0
CO2E
0
OLVL2 0000 0000
Timer status (TSR)
$002E
IC1F
IC2F
OC1F
TOF
TCAP1 TCAP2 OC2F
0
uuuu uuu0
u = undened
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
EPROM programming (PROG)
$001D
00000
ELATCH
0
EPGM 0000 0000
Table A-1 Register outline
Register Name
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State
on reset
TPG
113
05F4Book Page 5 Tuesday, August 5, 1997 1:10 pm
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