Table of Contents
xiv
MC68307 USER’S MANUAL
MOTOROLA
10.4
MC68307 UART Driver Examples ............................................................ 10-24
10.4.1
Software Listing 3 ................................................................................... 10-24
10.5
Swapping ROM and RAM Mapping on the MC68307 .............................. 10-27
10.5.1
Software Implementation ........................................................................ 10-27
10.5.1.1
Software Listing 4 ................................................................................. 10-28
Section 11
Electrical Characteristics
11.1
Maximum Ratings ....................................................................................... 11-1
11.2
Thermal Characteristics.............................................................................. 11-1
11.3
Power Considerations................................................................................. 11-2
11.4
AC Electrical Specification Definitions ........................................................ 11-2
11.5
DC Electrical Specifications........................................................................ 11-4
11.6
AC Electrical Specifications—Clock Timing................................................ 11-4
11.7
AC Electrical Specifications—Read and Write Cycles................................ 11-5
11.8
AC Electrical Specifications—Bus Arbitration............................................. 11-9
11.9
AC Electrical Specifications—8051 Bus Interface Module ....................... 11-11
11.10
Timer Module Electrical Characteristics ................................................... 11-13
11.11
UART Electrical Characteristics................................................................ 11-14
11.12
AC Electrical Characteristics—M-Bus Input Signal Timing....................... 11-15
11.13
AC Electrical Characteristics—M-Bus Output Signal Timing.................... 11-15
11.14
AC Electrical Characteristics—Port Timing .............................................. 11-16
11.15
IEEE 1149.1 Electrical Characteristics ..................................................... 11-17
Section 12
Ordering Information and Mechanical Data
12.1
Standard Ordering Information ................................................................... 12-1
12.2
100-Pin PQFP Pin Assignments................................................................. 12-1
12.3
100-Pin PQFP Package Dimensions.......................................................... 12-2
12.4
100-Pin TQFP Pin Assignments ................................................................. 12-3
12.5
100-Pin TQFP Package Dimensions .......................................................... 12-4
Index