摘要：DS1863突发模式PON控制器集成了监测电路，可用于配置报警、预警、查找表及其它功能。为了实现这些编程功能，需要一个大容量的映射寄存器，本应用笔记介绍了寄存器图的概况，便于器件的编程设计。
DS1863的存储器
DS1863具有6个独立的存储器表，在内部排列成8个字节行(图1)。
- 地址从00h到7Fh的低层存储器：它包含报警门限、预警门限、标志、屏蔽和几个控制寄存器，另外还包括密码输入区域(PWE)和表选择字节。
- 表01h主要包括用户EEPROM (PW1级访问权限) 和一些报警、预警状态字节。
- 表02h是多功能区，包括配制寄存器、比例调节与失调数值、密码、中断寄存器以及各种控制字节。
- 表03h是严格的用户EEPROM区域，受PW2级加密保护。
- 表04h包含温度索引查找表(LUT)，用于控制调制电压。调制LUT可以在-40°C至+102°C范围内，以2°C步长进行设置。这些寄存器的访问受PW2级加密保护。
- 表05h包含另一个LUT，允许APC设置点作为温度的函数进行调节，用于跟踪误差(TE)补偿。TE LUT具有36项，能够在-40°C至+100°C范围内，以4°C为间隔设置APC。该寄存器的访问受PW2级加密保护。
图1. DS1863的存储器架构
寄存器参考值
以下表格给出了低层存储器、表01h和表02h的简单参考值，有关每位功能的说明，请参考DS1863数据资料中对应的寄存器。表03h、04h和05h不需要单独的参考值，这里没有列出。
注：RSVD是“RESERVED”的缩写。
低层存储器 Register Name Bit7 Bit0TEMP ALARM HI00hS2625242322212001h2-12-22-32-42-52-62-72-8TEMP ALARM LO02hS2625242322212003h2-12-22-32-42-52-62-72-8TEMP WARN HI04hS2625242322212005h2-12-22-32-42-52-62-72-8TEMP WARN LO06hS2625242322212007h2-12-22-32-42-52-62-72-8VCC ALARM HI08h215214213212211210292809h2726252423222120VCC ALARM LO0Ah21521421321221121029280Bh2726252423222120VCC WARN HI0Ch21521421321221121029280Dh2726252423222120VCC WARN LO0Eh21521421321221121029280Fh2726252423222120MON1 ALARM HI10h215214213212211210292811h2726252423222120MON1 ALARM LO12h215214213212211210292813h2726252423222120MON1 WARN HI14h215214213212211210292815h2726252423222120MON1 WARN LO16h215214213212211210292817h2726252423222120MON2 ALARM HI18h215214213212211210292819h2726252423222120MON2 ALARM LO1Ah21521421321221121029281Bh2726252423222120MON2 WARN HI1Ch21521421321221121029281Dh2726252423222120MON2 WARN LO1Eh21521421321221121029281Fh2726252423222120MON3 ALARM HI20h215214213212211210292821h2726252423222120MON3 ALARM LO22h215214213212211210292823h2726252423222120MON3 WARN HI24h215214213212211210292825h2726252423222120MON3 WARN LO26h215214213212211210292827h2726252423222120SHADOWED EEPROM28h-2FhSEESEESEESEESEESEESEESEEPW2 EE30h-5FhEEEEEEEEEEEEEEEETEMP VALUE60hS2625242322212061h2-12-22-32-42-52-62-72-8VCC VALUE62h215214213212211210292863h2726252423222120MON1 VALUE64h215214213212211210292865h2726252423222120MON2 VALUE66h215214213212211210292867h2726252423222120MON3 VALUE68h215214213212211210292869h2726252423222120STATUS6EhFETG
STATUSSOFT
FETGRSVDTX-F
RESETSOFT
TX-DTX-F
STATUSRSVDRDYBUPDATE6FhTEMP RDYVCC RDYMON1 RDYMON2 RDYMON3 RDYRSVDRSVDRSVDALARM370hTEMP HITEMP LOVCC HIVCC LOMON1 HIMON1 LOMON2 HIMON2 LOALARM271hMON3 HIMON3 LORSVDRSVDRSVDRSVDRSVDRSVDALARM172hRSVDRSVDRSVDRSVDBIAS HIRSVDTX-P HITX-P LOALARM073hRSVDRSVDRSVDRSVDBIAS MAXRSVDRSVDRSVDWARN374hTEMP HITEMP LOVCC HIVCC LOMON1 HIMON1 LOMON2 HIMON2 LOWARN275hMON3 HIMON3 LORSVDRSVDRSVDRSVDRSVDRSVDPASSWORD ENTRY (PWE)7Bh2312302292282272262252247Ch2232222212202192182172167Dh21521421321221121029287Eh2726252423222120TABLE SELECT (TBL SEL)7Fh2726252423222120
表01h Bit7 Bit0PW1 EEPROM80h-F7hEEEEEEEEEEEEEEEEALARM3F8hTEMP HITEMP LOVCC HIVCC LOMON1 HIMON1 LOMON2 HIMON2 LOALARM2F9hMON3 HIMON3 LORSVDRSVDRSVDRSVDRSVDRSVDALARM1FAhRSVDRSVDRSVDRSVDBIAS HIRSVDTX-P HITX-P LOALARM0FBhRSVDRSVDRSVDRSVDBIAS MAXRSVDRSVDRSVDWARN3FChTEMP HITEMP LOVCC HIVCC LOMON1 HIMON1 LOMON2 HIMON2 LOWARN2FDhMON3 HIMON3 LORSVDRSVDRSVDRSVDRSVDRSVD
表02h Bit7 Bit0MODE80hSEEBRSVDRSVDRSVDAENMOD-ENAPC-ENBIAS-ENT INDEX81h2726252423222120MOD DAC82h2726252423222120APC DAC83h2726252423222120BIAS DAC84h0021221121029282785h2726252423222120DEVICE ID86h01100011DEVICE VER87h
DEVICE VERSIONUPDATE RATE86h0000SR(3:0)SR(3:0)SR(3:0)SR(3:0)CONFIG89hFETG DIRTX-F ENRSVDASELRSVDRSVDRSVDRSVDSTART-UP STEP8Ah2122112102928272625MOD RANGING8BhRSVDRSVDRSVDRSVDRSVDMOD2MOD1MOD0DEVICE ADDRESS8Ch27262524232221XCOMP RANGING8DhRSVDRSVDRSVDRSVDRSVDAPC2APC1APC0RIGHT SHIFT18EhRSVDMON1_2MON1_1MON1_0RSVDMON2_2MON2_1MON2_0RIGHT SHIFT08FhRSVDMON3_2MON3_1MON3_0RSVDRSVDRSVDRSVDVCC SCALE
MON1-4 SCALE92, 94, 96, 98, 9Ah215214213212211210292893, 95, 97, 99, 9Bh2726252423222120VCC OFFSET
MON1-4 OFFSETA2, A4, A6, A8, AAhSS215214213212211210A3, A5, A7, A9, ABh2928272625242322TEMP OFFSETAEhS28272625242322AFh21202-12-22-32-42-52-6PW1, PW2B0h, B4h231230229228227226225224B1h, B5h223222221220219218217216B2h, B6h2152142132122112102928B3h, B7h2726252423222120FETG ENABLE1B8hTEMP ENVCC ENMON1 ENMON2 ENMON3 ENRSVDRSVDRSVDFETG ENABLE0B9hTX-P HI ENTX-P LO ENBIAS HI ENBIAS MAX ENRSVDRSVDRSVDRSVDTX-F ENABLE1BAhTEMP ENVCC ENMON1 ENMON2 ENMON3 ENRSVDRSVDRSVDTX-F ENABLE0BBhTX-P HI ENTX-P LO ENBIAS HI ENBIAS MAX ENRSVDRSVDRSVDFETG ENHTXPBCh2726252423222120LTXPBDh2726252423222120HBIASBEh2726252423222120MAX IBIASBFh2122112102928272625MAN IBIASF8hRSVDRSVD212211210292827F9h2726252423222120MAN_CNTLFAhRSVDRSVDRSVDRSVDRSVDRSVDRSVDMAN_CLK
本文关键字：存储器 电工入门，电工技术 - 电工入门
