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SDA 6000
PRELIMINARY DATA SHEET
Version 2.1
System Control & Configuration
6 - 34
Micronas
P4L (during reset)
Reset Value: XXXX
H
P4
Reset Value: 0000
H
Alternate Functions of Port 4
During external bus cycles that use segmentation (e.g. an address space above
128 KByte), a number of Port 4 pins may output the segment address lines and activate
the third chip select signal (A(20 … 16) and CS3). The number of pins that is used for
segment address output determines the external address space which is directly
accessible. The other pins of Port 4 (if any) may be used for general purpose output. If
segment address lines are selected, the alternate function of Port 4 may be necessary
to access e.g. external memory directly after reset. For this reason Port 4 will be
automatically switched to this alternate function.
Bit
Function
P4L.0
BSLENA (Boot Strap Load Enable)
P4L.0 = 1: Boot strap loader enabled
P4L.0 = 0: Boot strap loader disabled
P4L.1
CSENA (Chip Select Enable)
P4L.1 = 1: P4.5 configured as general purpose pin
P4L.1 = 0: P4.5 configured as CS3
P4L.2
Reserved
P4L.(5 … 3)
SALSEL(2 … 0) (Select Number of Address Lines)
see explanation below
Bit
Function
P4.y
Port data register P4 bit.y
5
4
3
2
1
0
11
10
9
8
7
6
15
14
13
12
-
-
-
-
-
-
-
-
-
-
P4L.5
P4L.4 P4L.3
P4L.2 P4L.1 P4L.0
r
r
r
r
r
r
5
4
3
2
1
0
11
10
9
8
7
6
15
14
13
12
rw
rw
rw
rw
rw
rw
-
-
-
-
-
-
-
-
-
-
P4.5
P4.4
P4.3
P4.2
P4.1
P4.0
Содержание SDA 6000
Страница 3: ...Contents Overview...
Страница 21: ...Pin Description...
Страница 22: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Pin Descriptions 2 3 Micronas 2 Pin Descriptions...
Страница 29: ...Architectural Overview...
Страница 33: ...C16X Microcontroller...
Страница 34: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 C16X Microcontroller 4 3 Micronas 4 C16X Microcontroller...
Страница 88: ...Interrupt and Trap Function...
Страница 122: ...System Control Configuration...
Страница 159: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 System Control Configuration 6 40 Micronas...
Страница 160: ...Peripherals...
Страница 282: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Peripherals 7 124 Micronas...
Страница 283: ...Clock System...
Страница 284: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 3 Micronas 8 Clock System...
Страница 288: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Clock System 8 8 Micronas...
Страница 289: ...Sync System...
Страница 290: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Sync System 9 3 Micronas 9 Sync System...
Страница 301: ...Display Generator...
Страница 302: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Display Generator 10 3 Micronas 10 Display Generator...
Страница 348: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Display Generator 10 50 Micronas...
Страница 349: ...D A Converter...
Страница 352: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 D A Converter 11 6 Micronas...
Страница 353: ...Slicer and Acquisition...
Страница 354: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Slicer and Acquisition 12 3 Micronas 12 Slicer and Acquisition...
Страница 381: ...Register Overview...
Страница 398: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Register Overview 13 20 Micronas...
Страница 399: ...Elelctrical Characteristics...
Страница 400: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Electrical Characteristics 14 3 Micronas 14 Electrical Characteristics...
Страница 411: ...SDA 6000 PRELIMINARY DATA SHEET Version 2 1 Electrical Characteristics 14 14 Micronas...