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MSM66591/ML66592 User's Manual
Chapter 3 CPU Architecture
3
3.2.6 Special Function Register (SFR)
The SFR area is a 256-byte area of data memory space, 0000H–00FFH, and the
expanded SFR area is another 256-byte area of data memory space, 0100H–01FFH.
SFR and expanded SFR are groups of registers that have special functions assigned,
such as:
• mode register of various peripheral hardware
• arithmetic register (ACC)
• control registers (PSW, LRBL, LRBH, SSP)
Table 3-3 shows the SFR list. The meaning of items in this list are explained below.
• Address [H]
An address is expressed in hexadecimal. "
✩
" in the address column
indicates that there is a missing bit (nonexistent bit) in the register.
• Name
Name based on the SFR function.
• Abbreviated
Abbreviation of name and data address symbol in assembler.
Name
Specifically SSP, LRB, LRBL, LRBH, PSW, PSWL and PSWH
become ASSP, ALRB, ALRBL, ALRBH, APSW, APSWL and
APSWH respectively.
• R/W
Read (R)/write (W) possibility of SFR
R/W both read and write enable
R
read only
W
write only
• 8/16-Bit
8-bit operation/16-bit operation possibility of SFR.
Operation
Specify a 16-bit operation for a 16-bit operable register by an even
address.
The bit operation to a 16-bit operation-only register is disabled.
8/16
both 8-bit operation and 16-bit operation enable
8
8-bit operation only
16
16-bit operation only
• Reset State
Indicates content of each SFR at reset (when
RES
signal is
input, the BRK instruction is executed, the watchdog timer is over-
flown, or an operation code trap is generated).
In Table 3-3, addresses where nothing has been assigned are indicated by blank
columns. Do not access them.
Содержание MSM66591
Страница 1: ...MSM66591 ML66592 User s Manual CMOS 16 bit microcontroller FEUL66591 66592 01 Issue Date Mar 4 2002...
Страница 15: ...Contents 12...
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Страница 18: ...Overview Chapter 1 1...
Страница 19: ......
Страница 30: ...Description of Pins Chapter 2 2...
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Страница 44: ...CPU Architecture Chapter 3 3...
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Страница 101: ...3 56 MSM66591 ML66592User sManual Chapter 3 CPU Architecture...
Страница 102: ...CPU Control Functions Chapter 4 4...
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Страница 111: ...4 8 MSM66591 ML66592User sManual Chapter 4 CPU Control Functions...
Страница 112: ...Memory Control Functions Chapter 5 5...
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Страница 117: ...5 4 MSM66591 ML66592User sManual Chapter 5 Memory Control Functions...
Страница 118: ...Port Functions Chapter 6 6...
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Страница 152: ...Output Pin Control Pin OE Chapter 7 7...
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Страница 155: ...7 2 MSM66591 ML66592User sManual Chapter 7 Output Pin Control Pin OE...
Страница 156: ...Clock Generation Circuit Chapter 8 8...
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Страница 160: ...Time Base Counter TBC Chapter 9 9...
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Страница 164: ...Watchdog Timer WDT Chapter 10 10...
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Страница 170: ...Flexible Timer FTM Chapter 11 11 11...
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Страница 213: ...11 42 MSM66591 ML66592User sManual Chapter 11 Flexible Timer FTM...
Страница 214: ...General Purpose 8 Bit Timer Function Chapter 12 12...
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Страница 223: ...12 8 MSM66591 ML66592User sManual Chapter 12 General Purpose 8 Bit Timer Function...
Страница 224: ...PWM Functions Chapter 13 13...
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Страница 244: ...Baud Rate Generator Functions Chapter 14 14...
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Страница 263: ...14 18 MSM66591 ML66592User sManual Chapter 14 Baud Rate Generator Functions...
Страница 264: ...Serial Port Functions Chapter 15 15...
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Страница 348: ...A D Converter Functions Chapter 16 16...
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Страница 381: ...16 32 MSM66591 ML66592User sManual Chapter 16 A D Converter Functions...
Страница 382: ...Transition Detector Functions Chapter 17 17...
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Страница 387: ...17 4 MSM66591 ML66592User sManual Chapter 17 Transition Detector Functions...
Страница 388: ...Peripheral Functions Chapter 18 18...
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Страница 392: ...External Interrupt Request Function Chapter 19 19...
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Страница 396: ...Interrupt Request Processing Function Chapter 20 20...
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Страница 407: ...20 10 MSM66591 ML66592User sManual Chapter 20 Interrupt Request Processing Function...
Страница 408: ...Bus Port Functions Chapter 21 21...
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Страница 413: ...21 4 MSM66591 ML66592User sManual Chapter 21 Bus Port Functions...
Страница 414: ...Expansion Port Chapter 22 22...
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Страница 420: ...Serial Port with FIFO SCI5 Chapter 23 23...
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Страница 431: ...23 10 MSM66591 ML66592User sManual Chapter 23 Serial Port with FIFO SCI5...
Страница 432: ...RAM Monitor Function Chapter 24 24...
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Страница 441: ...24 8 MSM66591 ML66592User sManual Chapter 24 RAM Monitor Function...
Страница 442: ...25 Electrical Characteristics Chapter 25...
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Страница 458: ...Package Dimensions Chapter 26 26...
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Страница 461: ...26 2 MSM66591 ML66592User sManual Chapter 26 Package Dimensions...
Страница 462: ...Revision History Chapter 27 27...
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Страница 465: ...27 2 MSM66591 ML66592User sManual Chapter 27 Revision History...