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参数资料
| 型号： | PIC18F26J13T-I/SS |
| 厂商： | Microchip Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC MCU8BIT 64KB FLASH 28SSOP |
| 标准包装： | 2,100 |
| 系列： | PIC® XLP™ 18F |
| 核心处理器： | PIC |
| 芯体尺寸： | 8-位 |
| 速度： | 48MHz |
| 连通性： | I²C，LIN，SPI，UART/USART |
| 外围设备： | 欠压检测/复位，POR，PWM，WDT |
| 输入/输出数： | 22 |
| 程序存储器容量： | 64KB（32K x 16） |
| 程序存储器类型： | 闪存 |
| RAM 容量： | 3.8K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 2.15 V ~ 3.6 V |
| 数据转换器： | A/D 10x10b/12b |
| 振荡器型： | 内部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 包装： | 带卷 (TR) |
| 配用： | MA180030-ND - BOARD DEMO PIC18F47J13 FS USB MA180029-ND - BOARD DEMO PIC18F47J53 FS USB |
PIC18F87K90 FAMILY
DS39957D-page 106
2009-2011 Microchip Technology Inc.
6.4.3.2
FSR Registers and POSTINC,
POSTDEC, PREINC and PLUSW
In addition to the INDF operand, each FSR register pair
also has four additional indirect operands. Like INDF,
these are “virtual” registers that cannot be indirectly
read or written to. Accessing these registers actually
accesses the associated FSR register pair, but also
performs a specific action on its stored value.
These operands are:
POSTDEC – Accesses the FSR value, then
automatically decrements it by ‘1’ afterwards
POSTINC – Accesses the FSR value, then
automatically increments it by ‘1’ afterwards
PREINC – Increments the FSR value by ‘1’, then
uses it in the operation
PLUSW – Adds the signed value of the W register
(range of -127 to 128) to that of the FSR and uses
the new value in the operation
In this context, accessing an INDF register uses the
value in the FSR registers without changing them.
Similarly, accessing a PLUSW register gives the FSR
value, offset by the value in the W register – with
neither value actually changed in the operation.
Accessing the other virtual registers changes the value
of the FSR registers.
Operations on the FSRs with POSTDEC, POSTINC
and PREINC affect the entire register pair. Rollovers of
the FSRnL register, from FFh to 00h, carry over to the
FSRnH register. On the other hand, results of these
operations do not change the value of any flags in the
STATUS register (for example, Z, N and OV bits).
The PLUSW register can be used to implement a form
of Indexed Addressing in the data memory space. By
manipulating the value in the W register, users can
reach addresses that are fixed offsets from pointer
addresses. In some applications, this can be used to
implement some powerful program control structure,
such as software stacks, inside of data memory.
6.4.3.3
Operations by FSRs on FSRs
Indirect Addressing operations that target other FSRs
or virtual registers represent special cases. For
example, using an FSR to point to one of the virtual
registers will not result in successful operations.
As a specific case, assume that the FSR0H:FSR0L
registers contain FE7h, the address of INDF1.
Attempts to read the value of the INDF1, using INDF0
as an operand, will return 00h. Attempts to write to
INDF1, using INDF0 as the operand, will result in a
NOP
.
On the other hand, using the virtual registers to write to
an FSR pair may not occur as planned. In these cases,
the value will be written to the FSR pair, but without any
incrementing or decrementing. Thus, writing to INDF2
or POSTDEC2 will write the same value to the
FSR2H:FSR2L.
Since the FSRs are physical registers mapped in the
SFR space, they can be manipulated through all direct
operations. Users should proceed cautiously when
working on these registers, however, particularly if their
code uses Indirect Addressing.
Similarly, operations by Indirect Addressing are
generally permitted on all other SFRs. Users should
exercise the appropriate caution, so that they do not
inadvertently change settings that might affect the
operation of the device.
6.5
Program Memory and the
Extended Instruction Set
The operation of program memory is unaffected by the
use of the extended instruction set.
Enabling the extended instruction set adds five
additional two-word commands to the existing PIC18
instruction set: ADDFSR, CALLW, MOVSF, MOVSS and
SUBFSR
. These instructions are executed as described
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| PIC18F26J50-EVK | 制造商:Embest Info&Tech Co Ltd 功能描述:PIC18F26J50 FLOWCODE 4 DEV KIT 制造商:Microchip Technology Inc 功能描述:PIC18F26J50, FLOWCODE 4, DEV KIT 制造商:Microchip Technology Inc 功能描述:PIC18F26J50, FLOWCODE 4, TEMP SENSOR, DEV KIT; Silicon Manufacturer:Microchip; Core Architecture:PIC; Core Sub-Architecture:PIC18; Silicon Core Number:PIC18F; Silicon Family Name:PIC18FxxJxx ;RoHS Compliant: Yes |
| PIC18F26J50-I/ML | 功能描述:8位微控制器 -MCU Full Spd USB 64KB Flsh 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| PIC18F26J50-I/SO | 功能描述:8位微控制器 -MCU Full Spd USB 64KB Flsh 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| PIC18F26J50-I/SP | 功能描述:8位微控制器 -MCU Full Spd USB 64KB Flsh 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| PIC18F26J50-I/SS | 功能描述:8位微控制器 -MCU Full Spd USB 64KB Flsh 4KBRAM nanoWatt RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
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