参数资料
型号: SC102204MPV
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
封装: LQFP-112
文件页数: 118/142页
文件大小: 6464K
代理商: SC102204MPV
Device User Guide — 9S12DT128DGV2/D V02.15
77
Freescale Semiconductor
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
The operating mode out of reset is determined by the states of the MODC, MODB, and MODA pins during
reset ((Table 4-1)). The MODC, MODB, and MODA bits in the MODE register show the current
operating mode and provide limited mode switching during operation. The states of the MODC, MODB,
and MODA pins are latched into these bits on the rising edge of the reset signal. The ROMCTL signal
allows the setting 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
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
1
0
1
Emulation Expanded Narrow, BDM allowed
1
0
1
0
X
0
Special Test (Expanded Wide), BDM allowed
0
1
0
1
Emulation Expanded Wide, BDM allowed
1
0
1
0
X
1
Normal Single Chip, BDM allowed
1
0
1
0
Normal Expanded Narrow, BDM allowed
1
0
X
1
Special Peripheral; BDM allowed but bus operations
would cause bus conicts (must not be used)
1
0
Normal Expanded Wide, BDM allowed
1
Table 4-2 Clock Selection Based on PE7
PE7 = XCLKS
Description
1
Colpitts Oscillator selected
0
Pierce Oscillator/external clock selected
相关PDF资料
PDF描述
SC102204VPV 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
S9S12HN64J3MAA 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
S9S12XS64J1CAAR 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP80
S9S12XS64J1CAE 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP64
S9S12XS64J1MAAR 16-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQFP80
相关代理商/技术参数
参数描述
SC102205 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:nullDevice User Guide
SC10220KT 功能描述:固定电感器 SC10-10-0529-10 22UH AMMO 500 RoHS:否 制造商:AVX 电感:10 uH 容差:20 % 最大直流电流:1 A 最大直流电阻:0.075 Ohms 工作温度范围:- 40 C to + 85 C 自谐振频率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接类型:SMD/SMT 封装 / 箱体:6.6 mm x 4.45 mm
SC10221KT 功能描述:固定电感器 RoHS:否 制造商:AVX 电感:10 uH 容差:20 % 最大直流电流:1 A 最大直流电阻:0.075 Ohms 工作温度范围:- 40 C to + 85 C 自谐振频率:38 MHz Q 最小值:40 尺寸:4.45 mm W x 6.6 mm L x 2.92 mm H 屏蔽:Shielded 端接类型:SMD/SMT 封装 / 箱体:6.6 mm x 4.45 mm
SC102255MFU 制造商:Freescale Semiconductor 功能描述:
SC102302VPB 制造商:Freescale Semiconductor 功能描述: