MC68HC16Z1CFC16 Freescale Semiconductor, MC68HC16Z1CFC16 Datasheet - Page 170

• Manufacturer Part Number: MC68HC16Z1CFC16
• Description: IC MPU 1K RAM 16MHZ 132-PQFP
• Manufacturer: Freescale Semiconductor
• Series: HC16r

Specifications of MC68HC16Z1CFC16

• Core Processor: CPU16
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SCI, SPI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Type: ROMless
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 132-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -

5.9.1.1 Chip-Select Pin Assignment Registers
5-64
Blocks of addresses are assigned to each chip-select function. Block sizes of 2 Kbytes
to 1 Mbyte can be selected by writing values to the appropriate base address register
(CSBAR[10:0] and CSBARBT). However, because the logic state of ADDR20 is al-
ways the same as the state of ADDR19 in the MCU, the largest usable block size is
512 Kbytes. Multiple chip-selects assigned to the same block of addresses must have
the same number of wait states.
Chip-select option registers (CSORBT and CSOR[0:10]) determine timing of and con-
ditions for assertion of chip-select signals. Eight parameters, including operating
mode, access size, synchronization, and wait state insertion can be specified.
Initialization software usually resides in a peripheral memory device controlled by the
chip-select circuits. A set of special chip-select functions and registers (CSORBT and
CSBARBT) is provided to support bootstrap operation.
Comprehensive address maps and register diagrams are provided in
REGISTER
The pin assignment registers contain twelve 2-bit fields that determine the functions of
the chip-select pins. Each pin has two or three possible functions, as shown in
5-22.
Table 5-23
function must not use the %00 encoding as this will cause the alternate function to be
selected. For instance, %00 for CS0/BR will cause the pin to perform the BR function.
shows pin assignment field encoding. Pins that have no discrete output
SUMMARY.
Chip-Select
Table 5-23 Pin Assignment Field Encoding
CSBOOT
Freescale Semiconductor, Inc.
CS10
Table 5-22 Chip-Select Pin Functions
CS0
CS1
CS2
CS3
CS4
CS5
CS6
CS7
CS8
CS9
For More Information On This Product,
CSxPA[1:0]
00
01
10
11
SYSTEM INTEGRATION MODULE
Go to: www.freescale.com
Alternate
Function
CSBOOT
ADDR19
ADDR20
ADDR21
ADDR22
ADDR23
Chip-select (16-bit port)
BGACK
Chip-select (8-bit port)
FC0
FC1
FC2
BR
BG
Alternate function
Discrete output
Description
Discrete
Output
ECLK
PC0
PC1
PC2
PC3
PC4
PC5
PC6
—
—
—
—
M68HC16 Z SERIES
USER’S MANUAL
APPENDIX D
Table