428
Bit:
15
14
13
12
11
10
9
8
Bit name:
PA15
IOR
PA14
IOR
PA13
IOR
PA12
IOR
PA11
IOR
PA10
IOR
PA9
IOR
PA8
IOR
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
7
6
5
4
3
2
1
0
Bit name:
PA7
IOR
PA6
IOR
PA5
IOR
PA4
IOR
PA3
IOR
PA2
IOR
PA1
IOR
PA0
IOR
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
15.3.2
Port A Control Registers (PACR1 and PACR2)
PACR1 and PACR2 are 16-bit read/write registers that select the functions of the sixteen
multiplexed pins of port A. PACR1 selects the function of the upper eight bits of port A; PACR2
selects the function of the lower eight bits of port A. PACR1 and PACR2 are initialized to H'3302
and H'FF95 respectively by a power-on reset but are not initialized by a manual reset, or in
standby mode or sleep mode.
PACR1:
Bit:
15
14
13
12
11
10
9
8
Bit name:
PA15
MD1
PA15
MD0
PA14
MD1
PA14
MD0
PA13
MD1
PA13
MD0
PA12
MD1
PA12
MD0
Initial value:
0
0
1
1
0
0
1
1
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit:
7
6
5
4
3
2
1
0
Bit name:
PA11
MD1
PA11
MD0
PA10
MD1
PA10
MD0
PA9
MD1
PA9
MD0
—
PA8
MD
Initial value:
0
0
0
0
0
0
1
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
—
R/W
•
Bits 15 and 14 (PA15 Mode (PA15MD1 and PA15MD0)): PA15MD1 and PA15MD0 select
the function of the PA15/
IRQ3
/
DREQ1
pin.
Содержание HD6417032
Страница 21: ......
Страница 35: ...xiv ...
Страница 85: ...50 ...
Страница 101: ...66 ...
Страница 129: ...94 ...
Страница 135: ...100 ...
Страница 343: ...308 ...
Страница 369: ...334 ...
Страница 383: ...348 ...
Страница 475: ...440 ...
Страница 525: ...490 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 18 Self Refresh ...
Страница 578: ...543 CK RAS CAS TRp TRc TRcc tRASD1 tRASD2 tCASD3 tCASD2 TRr tCSR Figure 20 62 Self Refresh ...
Страница 689: ...654 ...