C8051F226DK Silicon Laboratories Inc, C8051F226DK Datasheet - Page 17

• Manufacturer Part Number: C8051F226DK
• Description: DEV KIT F220/221/226/230/231/236
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F226DK

• Contents: Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
• Processor To Be Evaluated: C8051F22x and C8051F23x
• Interface Type: USB
• Silicon Manufacturer: Silicon Labs
• Core Architecture: 8051
• Silicon Core Number: C8051F226
• Silicon Family Name: C8051F2xx
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: C8051F220, 221, 226, 230, 231, 236
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1241

1.2.
The CIP-51 has a standard 8051 program and data address configuration. It includes 256 bytes of data
RAM, with the upper 128 bytes dual-mapped. An optional 1024 bytes of XRAM is available on the 'F206,
'F226 and 'F236. Indirect addressing accesses the upper 128 bytes of general purpose RAM, and direct
addressing accesses the 128-byte SFR address space. The lower 128 bytes of RAM are accessible via
direct or indirect addressing. The first 32 bytes are addressable as four banks of general purpose regis-
ters, and the next 16 bytes can be byte addressable or bit addressable.
The MCU's program memory consists of 8 k + 128 bytes of Flash. This memory may be reprogrammed in-
system in 512 byte sectors, and requires no special off-chip programming voltage. The 512 bytes from
addresses 0x1E00 to 0x1FFF are reserved for factory use. There is also a user programmable 128-byte
sector at address 0x2000 to 0x207F, which may be useful as a table for storing software constants, nonvol-
atile configuration information, or as additional program space. See Figure 1.7 for the MCU system mem-
ory map.
CP0+
CP0-
On-Board Memory
System
Clock
Figure 1.6. Comparison of Peak MCU Throughputs
Comparator 0
+
-
Detector
Missing
Clock
EN
C0RSEF
EN
WDT
PRE
Rev. 1.6
VDD
CIP-51
Core
(Software Reset)
SWRSF
MonEn
Supply
Monitor
+
-
System Reset
Timeout
Supply
Reset
(wired-OR)
C8051F2xx
Reset
Funnel
/RST
17