DS80CH11 Maxim, DS80CH11 Datasheet - Page 7

• Manufacturer Part Number: DS80CH11
• Description: The system energy manager is a highly integrated microcontroller that provides several key features for systems including key scanning and control, battery and power management, as well as two 2-Wire serial I/O Ports
• Manufacturer: Maxim

1.2 DETAILED FEATURE SUMMARY
High Speed 80C32 Compatible Core:
Keyboard Control:
Input/Output:
Analog Input/Output:
– High performance 4 clocks / machine cycle
– Low Power: typically 1/3 power for equivalent
– Maximum clock speed up to 25 MHz at 5.0V
– Ultra–low stop mode power (typ. 1 uA) and
– Multiple wake–up sources from STOP including
– Three 16–bit timers, 1 serial port
– 256 byte scratchpad
– 256 bytes MOVX RAM
– Replaces 8042 and key scan microcontroller
– 2 Parallel I/O ports for key scan outputs
– One interrupt–driven 8–bit input port to initiate
– Total of eleven 8–bit I/O ports; all pins can be
– Each 8–bit port supports one or more special
– Eight–channel, 10–bit A/D with power down
(8032 = 12)
8032 throughput
“IDLE” mode (typ. 10 mA)
key scan, 2–wire, host I/F, or external interrupt
key–scan sequence
individually programmed to serve as general
purpose digital input/output.
functions:
interface
external interrupt I/O.
mode supports charging NiMH rechargeable
cells
Port 0, 2, 3: External program / data memory
Port 1, 3: UART, 2–Wire serial, timers, and
Port 4, 8, 9: Key scan input / output
Port 5: A/D inputs
Port 6: PWM Outputs
Port 7: Activity monitor, LED Control
Port 10: GPIO
1.3 CONVENTIONS
The following conventions are used throughout this
specification:
1.4 ADDITIONAL REFERENCES
The SEM incorporates the Dallas 8051 compatible High
Speed Micro core including the CPU and many of its
core peripherals. The operational details of these ele-
ments are contained in the Dallas High Speed Micro
User’s Guide.
2–Wire Bi–directional Serial Buses
Power Control
“SEM” is the short form name used to indicate the
System Energy Manager.
Signals that are active low are followed by a pound
symbol (#) or backslash (\), or are indicated with an
overbar.
If a range of signals is described, such as SA0 through
SA10, the range is given as SA10–0, with the most–
significant digit first and the least–significant digit last,
separated by a hyphen.
Numbers written in this specification can be written as
decimal, hexadecimal, or binary. Hexadecimal num-
bers are followed by an “H” suffix. Binary numbers are
followed by a “B” suffix.
27 = 1BH = 00011011B.
– 4–channel, 8–bit PWM supports LCD brightness
– Master/slave multi–drop operation
– Manages on–board slaves or external I/O
– Generates system power on reset
– Programmable power down pin states
and contrast control
devices
For example, decimal
011200 7/88
DS80CH11