參數(shù)資料
型號(hào)： S12ATD10B8CV2
廠商： Motorola, Inc.
英文描述： MC9S12DT128 Device User Guide V02.09
中文描述： MC9S12DT128設(shè)備的用戶手冊(cè)V02.09
文件頁(yè)數(shù)： 77/138頁(yè)
文件大?。?/td> 2083K
代理商： S12ATD10B8CV2
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MC9S12DT128 Device User Guide — V02.09
77
Section 4 Modes of Operation
4.1 Overview
Eight possible modes determine the operating configuration of the MC9S12DT128. Each mode has an
associated default memory map and external bus configuration controlled by a further pin.
Three low power modes exist for the device.
4.2 Chip Configuration Summary
TheoperatingmodeoutofresetisdeterminedbythestatesoftheMODC,MODB,andMODApinsduring
reset(
Table 4-1
).TheMODC,MODB,andMODAbitsintheMODEregistershowthecurrentoperating
modeandprovidelimitedmodeswitchingduringoperation.ThestatesoftheMODC,MODB,andMODA
pinsarelatchedintothesebitsontherisingedgeoftheresetsignal.TheROMCTLsignalallowsthesetting
of the ROMON bit in the MISC register thus controlling whether the internal Flash is visible in the
memory map. ROMON = 1 mean the Flash is visible in the memory map. The state of the ROMCTL pin
is latched into the ROMON bit in the MISC register on the rising edge of the reset signal.
For further explanation on the modes refer to the HCS12 Multiplexed External Bus Interface Block Guide.
Table 4-1 Mode Selection
BKGD =
MODC
PE6 =
MODB
PE5 =
MODA
PK7 =
ROMCTL
ROMON
Bit
Mode Description
0
0
0
X
1
Special Single Chip, BDM allowed and ACTIVE. BDM is
allowed in all other modes but a serial command is
required to make BDM active.
0
0
1
0
1
X
0
1
X
0
1
1
0
0
1
0
1
0
1
Emulation Expanded Narrow, BDM allowed
0
1
0
Special Test (Expanded Wide), BDM allowed
0
1
1
Emulation Expanded Wide, BDM allowed
1
0
0
Normal Single Chip, BDM allowed
1
0
1
Normal Expanded Narrow, BDM allowed
1
1
0
X
1
Special Peripheral; BDM allowed but bus operations
would cause bus conflicts (must not be used)
1
1
1
0
1
0
1
Normal Expanded Wide, BDM allowed
Table 4-2 Clock Selection Based on PE7
PE7 = XCLKS
1
0
Description
Colpitts Oscillator selected
Pierce Oscillator/external clock selected
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S12ATD10B8CV2D 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:MC9S12DT128 Device User Guide V02.09
S12B 功能描述:電話連接器 3 CONDUCTOR .210"ID RoHS:否 制造商:Switchcraft 標(biāo)準(zhǔn):1/4 in 開(kāi)關(guān)配置:Switched 型式:Female 位置/觸點(diǎn)數(shù)量: 端接類型:Solder 安裝風(fēng)格:Chassis (Panel) 方向:
S-12B 制造商:Switchcraft 功能描述:CONNECTOR PHONO JACK 3WAY 制造商:Switchcraft 功能描述:CONNECTOR, PHONO, JACK, 3WAY 制造商:Switchcraft 功能描述:CONNECTOR, RCA/PHONO, JACK, 3POS; Series:Little-Jax; Gender:Jack; External Diameter:6.35mm; No. of Contacts:3; Connector Color:-; Contact Termination:Solder; Connector Body Material:-; Contact Plating:-; Connector Mounting:Panel ;RoHS Compliant: Yes
S12B0C-L10PJH1-9000 制造商:ODU 功能描述:
S12BB 制造商:RELECO 功能描述:RELAY SOCKET BRIDGE BAR COIL PK5 制造商:RELECO 功能描述:RELAY SOCKET, BRIDGE BAR COIL, PK5
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