P R E L I M I N A R Y
LIST OF FIGURES
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Example System Design ........................................................................................ 10
Two-Component Address ...................................................................................... 34
Am186EM Microcontroller Address Bus—Normal Read and Write Operation ...... 35
Am186EM Microcontroller—Read and Write with Address Bus
Disable In Effect ..................................................................................................... 36
Am188EM Microcontroller Address Bus—Normal Read and Write Operation ...... 36
Am188EM Microcontroller—Read and Write with Address Bus
Figure 5.
Figure 6.
Disable In Effect ..................................................................................................... 37
Peripheral Control Block Register Map .................................................................. 39
Am186EM and Am188EM Microcontrollers Oscillator Configurations ................... 41
Clock Organization ................................................................................................ 42
Figure 7.
Figure 8.
Figure 9.
Figure 10. DMA Unit Block Diagram ....................................................................................... 47
Figure 11. Synchronous Serial Interface Multiple Write .......................................................... 49
Figure 12. Synchronous Serial Interface Multiple Read .......................................................... 49
Figure 13. Typical I Versus Frequency for the Am186EMLV and Am188EMLV ................ 53
CC
Figure 14. Typical I Versus Frequency for the Am186EM and Am188EM ......................... 53
CC
Figure 15. Thermal Resistance(°C/Watt) ................................................................................ 54
Figure 16. Thermal Characteristics Equations ........................................................................ 54
Figure 17. Typical Ambient Temperatures for PQFP with 2-Layer Board ............................... 56
Figure 18. Typical Ambient Temperatures for TQFP with 2-Layer Board ............................... 57
Figure 19. Typical Ambient Temperatures for PQFP with 4-Layer to 6-Layer Board ............. 58
Figure 20. Typical Ambient Temperatures for TQFP with 4-Layer to 6-Layer Board .............. 59
LIST OF TABLES
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Data Byte Encoding ............................................................................................... 26
Numeric PIO Pin Assignments .............................................................................. 30
Alphabetic PIO Pin Assignments ........................................................................... 30
Bus Cycle Encoding ............................................................................................... 31
Segment Register Selection Rules ........................................................................ 34
Am186EM Microcontroller Maximum DMA Transfer Rates ................................... 46
Typical Power Consumption Calculation for the
Am186EMLV and Am188EMLV ............................................................................ 53
Thermal Characteristics (°C/Watt) ......................................................................... 54
Typical Power Consumption Calculation ............................................................... 55
Table 8.
Table 9.
Table 10. Junction Temperature Calculation ......................................................................... 55
Table 11. Typical Ambient Temperatures for PQFP with 2-Layer Board ............................... 56
Table 12. Typical Ambient Temperatures for TQFP with 2-Layer Board ............................... 57
Table 13. Typical Ambient Temperatures for PQFP with 4-Layer to 6-Layer Board ............. 58
Table 14. Typical Ambient Temperatures for TQFP with 4-Layer to 6-Layer Board .............. 59
Am186/188EM and Am186/188EMLV Microcontrollers
7
AMD [ AMD ]
