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參數資料
| 型號： | W65C816S |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Microprocessor |
| 中文描述： | 微處理器 |
| 文件頁數： | 55/62頁 |
| 文件大小： | 1129K |
| 代理商： | W65C816S |
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The Western Design Center, Inc.
W65C816S Data Sheet
The Western Design Center
W65C816S
55
bytes, this is determined by the setting of the status register. This forces the requirement for a directive or directives
that tell the assembler to generate one or two bytes of space for immediate loads. The directives provided shall allow
separate settings for the accumulator and index registers.
7.3.3.4
The assembler shall use the <, >, and ^ characters after the # character in immediate address
to specify which byte or bytes will be selected from the value of the operand. Any calculations in the operand must be
performed before the byte selection takes place. Table 7-3 defines the action taken by each operand by showing the
effect of the operator on an address. The column that shows a two byte immediate value show the bytes in the order in
which they appear in memory. The coding of the operand is for an assembler which uses 32-bit address calculations,
showing the way that the address should be reduced to a 24-bit value.
Table 7-3
Byte Selection Operator
Operand
One Byte
Result
#$01020304
7.3.3.3
Note that the operand does not determine whether or not immediate address loads one or two
Two Byte
Result
04
04
03
#<$01020304
04
04
03
#>$01020304
03
03
02
#^$01020304
02
02
01
coded, the assembler shall recognize the prefix characters <, |, and >, which force one byte (direct page), two byte
(absolute) or three byte (long absolute) addressing. In cases where the addressing modes is not forced, the assembler shall
assume that the address is two bytes unless the assembler is able to determine the type of addressing required by context,
in which case that addressing mode will be used. Addresses shall be truncated without error in an addressing mode is
forced which does not require the entire value of the address. For example, LDA $0203 and LDA |$010203 are completely
equivalent. If the addressing mode is not forced, and the type of addressing cannot be determined from context, the
assembler shall assume that a two byte address is to be used. If an instruction does not have a short addressing mode (as in
LDA< which has no direct page indexed by Y) and a short address is used in the operand, the assembler shall
automatically extend the address by padding the most significant bytes with zeroes in order to extend the address to the
length needed. As with immediate address, any expression evaluation shall take place before the address is selected; thus,
the address selection character is only used once, before the address of expression.
7.3.3.6
The (!) exclamation point character should be supported as an alternative to the | (vertical
bar).
7.3.3.7
A long indirect address is indicated in the operand field of an instruction field of an
instruction by surrounding the direct page address where the indirect address is found by square brackets; direct page
addresses which contain sixteen-bit addresses are indicated by being surrounded by parentheses.
7.3.4 Comment Field
The comment field may start no sooner than one space after the operation code field or operand field
depending on instruction type.
7.3.3.5
In any location in an operand where an address, or expression resulting in an address, can be
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W65C816S6PG-14 | 功能描述:微處理器 - MPU 8/16-bit Microprocessor RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| W65C816S6PLG-14 | 功能描述:微處理器 - MPU 8/16-bit Microprocessor RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| W65C816S8P-14 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microprocessor |
| W65C816S8PL-14 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microprocessor |
| W65C816S8Q-14 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:16-Bit Microprocessor |
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