參數(shù)資料
型號(hào)： MC68L11F1FN3
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： Multiconductor Audio, Control & Instrumentation Cable; Number of Conductors:15; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Material:Polyvinylchloride (PVC); Conductor Material:Copper; Conductor Plating:Tin RoHS Compliant: Yes
中文描述： 8-BIT, EEPROM, MICROCONTROLLER, PQCC68
封裝： PLASTIC, LCC-68
文件頁(yè)數(shù)： 29/68頁(yè)
文件大?。?/td> 486K
代理商： MC68L11F1FN3
MC68HC11F1/FC0
MC68HC11FTS/D
MOTOROLA
29
6 Electrically Erasable Programmable ROM
The MC68HC11F1 has 512 bytes of electrically erasable programmable ROM (EEPROM). A nonvola-
tile, EEPROM-based configuration register (CONFIG) controls whether the EEPROM is present or ab-
sent and determines its position in the memory map. In single-chip and bootstrap modes the EEPROM
is positioned at $FE00–$FFFF. In expanded and special test modes, the EEPROM can be repositioned
to any 4-Kbyte boundary ($xE00–$xFFF).
NOTE
EEPROM is available on the MC68HC11F1 only.
6.1 EEPROM Operation
The EEON bit in CONFIG controls whether the EEPROM is present in the memory map. When
EEON = 1, the EEPROM is enabled. When EEON = 0, the EEPROM is disabled and removed from the
memory map. EEON is forced to one out of reset in single-chip and special bootstrap modes to enable
EEPROM. EEON is forced to zero out of reset in special test mode to remove EEPROM from the mem-
ory map, although test software can turn it back on. In normal expanded mode, EEON is reset to the
value last programmed into CONFIG.
An on-chip charge pump develops the high voltage required for programming and erasing. When the
E-clock frequency is 1 MHz or above, the charge pump is driven by the E-clock. When the E-clock fre-
quency is less than 1 MHz, select the internal RC oscillator to drive the EEPROM charge pump by writ-
ing one to the CSEL bit in the OPTION register. Refer to the discussion of the OPTION register in
4.3
System Initialization Registers
, page 23.
6.2 EEPROM Registers
Bits [7:5] — Not implemented. Reads always return zero and writes have no effect.
PTCON — Protect for CONFIG
0 = CONFIG register can be programmed or erased normally
1 = CONFIG register cannot be programmed or erased
BPRT[3:0] — Block Protect Bits for EEPROM
0 = Protection disabled
1 = Protection enabled
NOTE
Block protect register bits can be written to zero (protection disabled) only once
within 64 cycles of a reset in normal modes, or at any time in special modes. Block
protect register bits can be written to one (protection enabled) at any time.
BPROT —
Block Protect
$x035
Bit 7
6
5
4
3
2
1
Bit 0
0
0
0
PTCON
BPRT3
BPRT2
BPRT1
BPRT0
RESET
0
0
0
1
1
1
1
1
Table 14 Block Protect Bits for EEPROM
Bit Name
BPRT3
BPRT2
PBRT1
BPRT0
Block Protected
$xEE0–xFFF
$xE60–xEDF
$xE20–xE5F
$xE00–xE1F
Block Size
288 Bytes
128 Bytes
64 Bytes
32 Bytes
相關(guān)PDF資料
PDF描述
MC68L11F1PU3 Technical Summary 8-Bit Microcontroller
MC74AC00 QUAD 2-INPUT NAND GATE
MC74AC00 QUAD 2-INPUT NAND GATE
MC74ACT00 NPN Epitaxial Silicon Transistor
MC74AC00D QUAD 2-INPUT NAND GATE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68L11K1FN2R2 制造商:Motorola Inc 功能描述:
MC68L11K1FUE2 功能描述:8位微控制器 -MCU 8B MCU L-VOLTAGE-EPP RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68L711E9FN2 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68L711E9FNE2 功能描述:8位微控制器 -MCU 8B MCU LO VOLTAGE RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
MC68L711E9FU2 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述:
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